Compare / browsers

Yandex Browser vs Chrome

Yandex Browser 26.8 runs on Chromium 150, six majors behind Chrome 156, names itself in the user agent and client hints, puts Russian first in navigator.languages and sends a TLS hello one extension short of Chrome's.

Yandex Browser Google Chrome

Yandex Browser is Yandex's Chromium browser, the one many visitors from Russia and neighbouring countries use. On the fleet on 2026-10-28, Yandex Browser 26.8.1.1111 stable is built on Chromium 150.0.7871.1111, while Chrome stable is 156.0.8078.47. Both were launched once headful and once headless through the same proxy the same night. The questions for a scraper: does Yandex look like Chrome on the wire, what does it tell a page about itself, and what does running six Chromium majors behind cost you?

As a developer: driving them

	Yandex Browser	Google Chrome
Version on the fleet	Yandex 26.8 stable on Chromium 150. Stable channel only, no pinned older versions.	Chrome 156 stable on Chromium 156, with `beta` and `dev` channels and pinned previous majors (`version`).
Launch options	`channel`, `cdp`, `screencast`, `live_view`, `screen_size`, `keep_alive`, `start_url`, `profile`, `record`, proxies, VPN Tunnel and own VPN.	The same plus `version`.
Playwright features	Main-world evaluate, console events, init scripts, routing, screenshots, PDF, device emulation, tracing: all work (measured).	The same list, all working (measured).
Web platform	Chromium 150: no `Iterator.prototype.includes`/`join`/`Iterator.zip`, no `FontFace` width, no `<camera>` element, no Protected Audience, no CSS `margin-trim`, `symbols()`, `random()` or `scroll-snap-type: pair`, no `media-playback-while-not-visible` policy (measured).	Chromium 156: all of the above present (measured).
Privacy Sandbox	Shared Storage and `document.requestStorageAccessFor` are exposed (measured).	Neither is exposed; Protected Audience is (measured).
WebGL	WebGL 2.0 on SwiftShader (ANGLE, Vulkan), the software renderer of a GPU-less server.	The same renderer.

As a scraper: what the site sees

	Yandex Browser	Google Chrome
User agent	`Chrome/150.0.0.0 YaBrowser/26.8.0.0 Safari/537.36`: Yandex names itself. Headless adds `HeadlessChrome/150` in place of `Chrome/150`.	`Chrome/156.0.0.0 Safari/537.36`; headless `HeadlessChrome/156.0.0.0`.
Client hints	Brands `Chromium 150`, `YaBrowser 26.8` and `Yowser 2.5`; full versions `150.0.7871.1111` and `26.8.1.1111`.	Brands `Chromium 156`, `Google Chrome 156`; full version `156.0.8078.47`.
Languages	`navigator.languages` is `ru-RU, ru, en-US, en`: Russian first, with the page locale still `en-US` (measured headful and headless).	`en-US, en`.
TLS	JA4 `t13d1516h2_8daaf6152771_806a8c22fdea`: 16 ciphers, 18 extensions; the same JA4 and full TLS hash as Naver Whale on Chromium 150 (Whale vs Chrome).	JA4 `t13d1517h2_8daaf6152771_cb7bf5808d99`: the same 16 ciphers, 19 extensions. The cipher part of JA4 matches; the extension part doesn't.
HTTP/2 and headers	Chromium's SETTINGS and WINDOW_UPDATE (`1:65536;2:0;4:6291456;6:262144\|15663105`) and the same header order.	Identical HTTP/2 fingerprint and header order.
Fingerprint values	Same canvas hash as Chrome (`f5a94624`) on the same renderer, 5 plugins, the PDF viewer, `webdriver` false. Core count and memory are the server's own and vary by host.	The same canvas hash, plugins and `webdriver` false. Neither adds fingerprint randomisation.
Bot checks	bot.sannysoft.com headful: 2 flags, "WebGL Renderer" and "CHR_MEMORY". Headless: 4, adding "User Agent (Old)" and "HEADCHR_UA" for the HeadlessChrome user agent.	Headful: 1 flag, "WebGL Renderer". Headless: the same 4 as headless Yandex.

Which to pick

Chrome for the most common visitor on the web, the newest stable engine, beta/dev channels and pinned majors.
Yandex Browser when a site, typically one aimed at visitors in Russia, should see a real Yandex visitor: the brand is consistent in the user agent, the client hints, Russian-first languages and a TLS hello that differs from Chrome's. It doesn't pass as Chrome, and it isn't meant to. Pair it with an exit in the country the site expects (residential proxy).
Run it headful. Headless Yandex says HeadlessChrome in its user agent, exactly like headless Chrome, and bot checks flag it the same way.
Mind the engine age: code written for Chromium 151–156 features may not run on Yandex's Chromium 150. Use Chrome or Edge for those.

Measured on the fleet (2026-10-28)

One launch of each, headful and headless, through the same proxy on 2026-10-28, probed from inside a page and via tls.peet.ws. Host-dependent values (cores, memory, timings) are left out of the comparison.

Launch and cost

Single run; timings depend on the proxy and on fleet load.

	Yandex Browser	Google Chrome	Yandex Browser, headless	Google Chrome, headless
Launch body	{"headless":false}	{"headless":false}	{"headless":true}	{"headless":"new"}
Threads used	2 (linux_headful)	2 (linux_headful)	1 (linux_headless)	1 (linux_headless)
Browser version	203.0.113.1	156.0.8078.47	203.0.113.1	156.0.8078.47
Launch request → browser ready	0.8 s	0.6 s	0.5 s	0.3 s
Playwright connect	0.0 s	0.1 s	0.0 s	0.1 s
Load example.com	1.5 s	2.1 s	0.7 s	5.8 s
Load tls.peet.ws/api/all	2.2 s	4.5 s	1.7 s	1.9 s

What the network sees

From tls.peet.ws/api/all, requested by the browser itself. JA3 hashes change between runs of the same build (GREASE), so compare JA4 and the HTTP/2 fingerprint.

	Yandex Browser	Google Chrome	Yandex Browser, headless	Google Chrome, headless
HTTP version	h2	h2	h2	h2
JA4	t13d1516h2_8daaf6152771_806a8c22fdea	t13d1517h2_8daaf6152771_cb7bf5808d99	t13d1516h2_8daaf6152771_806a8c22fdea	t13d1517h2_8daaf6152771_cb7bf5808d99
Peetprint hash	67c3e9111bed9e7f03d2f21d6d88994b	fc97c1cdfb1409c9a9326c1b726d1dee	67c3e9111bed9e7f03d2f21d6d88994b	fc97c1cdfb1409c9a9326c1b726d1dee
Akamai HTTP/2 fingerprint	1:65536;2:0;4:6291456;6:262144\|15663105\|0\|m,a,s,p	1:65536;2:0;4:6291456;6:262144\|15663105\|0\|m,a,s,p	1:65536;2:0;4:6291456;6:262144\|15663105\|0\|m,a,s,p	1:65536;2:0;4:6291456;6:262144\|15663105\|0\|m,a,s,p
Cipher suites / extensions	16 / 18	16 / 19	16 / 18	16 / 19
Header order (first 12)	method, authority, scheme, path, sec-ch-ua, sec-ch-ua-mobile, sec-ch-ua-platform, upgrade-insecure-requests, user-agent, accept, sec-fetch-site, sec-fetch-mode	method, authority, scheme, path, sec-ch-ua, sec-ch-ua-mobile, sec-ch-ua-platform, upgrade-insecure-requests, user-agent, accept, sec-fetch-site, sec-fetch-mode	method, authority, scheme, path, sec-ch-ua, sec-ch-ua-mobile, sec-ch-ua-platform, upgrade-insecure-requests, user-agent, accept, sec-fetch-site, sec-fetch-mode	method, authority, scheme, path, sec-ch-ua, sec-ch-ua-mobile, sec-ch-ua-platform, upgrade-insecure-requests, user-agent, accept, sec-fetch-site, sec-fetch-mode

What page scripts see

Read with page.evaluate on example.com. Cores and memory are the server's and vary between fleet nodes.

	Yandex Browser	Google Chrome	Yandex Browser, headless	Google Chrome, headless
navigator.userAgent	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 YaBrowser/26.8.0.0 Safari/537.36	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/150.0.0.0 YaBrowser/26.8.0.0 Safari/537.36	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.0.0 Safari/537.36
UA-CH brands	Not;A=Brand 8 · Chromium 150 · YaBrowser 26.8 · Yowser 2.5	Not:A-Brand 8 · Chromium 156 · Google Chrome 156	Not;A=Brand 8 · Chromium 150 · YaBrowser 26.8 · Yowser 2.5	Not:A-Brand 8 · Chromium 156 · Google Chrome 156
UA-CH full version list	Not;A=Brand 8.0.0.0 · Chromium 150.0.7871.1111 · YaBrowser 26.8.1.1111 · Yowser 2.5	Not:A-Brand 8.0.0.0 · Chromium 156.0.8078.47 · Google Chrome 156.0.8078.47	Not;A=Brand 8.0.0.0 · Chromium 150.0.7871.1111 · YaBrowser 26.8.1.1111 · Yowser 2.5	Not:A-Brand 8.0.0.0 · Chromium 156.0.8078.47 · Google Chrome 156.0.8078.47
navigator.platform / vendor	Linux x86_64 / Google Inc.	Linux x86_64 / Google Inc.	Linux x86_64 / Google Inc.	Linux x86_64 / Google Inc.
Languages	ru-RU, ru, en-US, en	en-US, en	ru-RU, ru, en-US, en	en-US, en
Timezone / locale	UTC / en-US	UTC / en-US	UTC / en-US	UTC / en-US
Screen (w×h×availW×availH×depth)	1280x720x1280x720x24	1280x720x1280x720x24	1280x720x1280x720x24	1280x720x1280x720x24
Window outer / inner / DPR	1288x805 / 1280x720 / 1	1288x805 / 1280x720 / 1	1280x720 / 1280x720 / 1	1280x720 / 1280x720 / 1
hardwareConcurrency / deviceMemory	16 / 32	64 / 32	64 / 32	24 / 32
WebGL vendor	Google Inc. (Google)	Google Inc. (Google)	Google Inc. (Google)	Google Inc. (Google)
WebGL renderer	ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)	ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)	ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)	ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)
WebGL version	WebGL 2.0 (OpenGL ES 3.0 Chromium)	WebGL 2.0 (OpenGL ES 3.0 Chromium)	WebGL 2.0 (OpenGL ES 3.0 Chromium)	WebGL 2.0 (OpenGL ES 3.0 Chromium)
WebGPU (navigator.gpu)	yes	yes	yes	yes
Canvas hash	f5a94624	f5a94624	f5a94624	f5a94624
navigator.webdriver	no	no	no	no
window.chrome / navigator.connection	yes / yes	yes / yes	yes / yes	yes / yes
Plugins / PDF viewer	5 / yes	5 / yes	5 / yes	5 / yes
Notification.permission / permissions.query	default / prompt	default / prompt	default / prompt	default / prompt

Web platform features

Presence probes; a user agent that claims one version while exposing another's features is a detectable inconsistency.

	Yandex Browser	Google Chrome	Yandex Browser, headless	Google Chrome, headless
`Iterator.prototype.includes` (new in Chrome 154)	no	yes	no	yes
`FontFace.width` (new in Chrome 154)	no	yes	no	yes
CSS `text-decoration-inset` (new in Chrome 154)	no	no	no	no
`Iterator.prototype.join` (Chrome 153)	no	yes	no	yes
`Iterator.zip` (Chrome 153)	no	yes	no	yes
CSS `scroll-axis-lock` (Chrome 153)	no	no	no	no
`<camera>` element (Chrome 153)	no	yes	no	yes
`document.requestStorageAccessFor` (deprecated in 153)	yes	no	yes	no
Topics API (`document.browsingTopics`)	yes	yes	yes	yes
Protected Audience (`navigator.joinAdInterestGroup`)	no	yes	no	yes
Shared Storage (`window.sharedStorage`)	yes	no	yes	no
Attribution Reporting (`window.attributionReporting`)	no	no	no	no
Private Aggregation	no	no	no	no
WebHID (`navigator.hid`)	yes	yes	yes	yes
CSS `margin-trim` (Chrome 155)	no	yes	no	yes
CSS `text-decoration-skip-spaces` (Chrome 155)	no	no	no	no
CSS `corner` shorthand (Chrome 155)	no	no	no	no
CSS `symbols()` (Chrome 155)	no	yes	no	yes
`Element.streamAppendHTML` (Chrome 155)	no	no	no	no
`WebTransport.reliability` (Chrome 155)	no	no	no	no
`window.maximize()` — Additional Windowing Controls (Chrome 155)	no	no	no	no
Canvas `srgb-linear` colour space (Chrome 155)	no	no	no	no
Permission policy `media-playback-while-not-visible` (Chrome 155)	no	yes	no	yes
CSS `random()` (Chrome 156)	no	yes	no	yes
CSS `scroll-snap-type: pair` (Chrome 156)	no	yes	no	yes
Fenced frames (`window.fence`) — removal starts in 157	yes	yes	yes	yes
`rel=compression-dictionary` (Chrome 156 updates)	yes	yes	yes	yes

bot.sannysoft.com

The classic headless-detection test page; what it marks red.

	Yandex Browser	Google Chrome	Yandex Browser, headless	Google Chrome, headless
Checks / failed	57 / 2	57 / 1	57 / 4	57 / 4
Failed checks	WebGL Renderer, CHR_MEMORY	WebGL Renderer	User Agent (Old), WebGL Renderer, HEADCHR_UA, CHR_MEMORY	User Agent (Old), WebGL Renderer, HEADCHR_UA, CHR_MEMORY

A plain-HTTP URL (http://ip-api.com/json)

Chrome 154 warns before loading insecure HTTP by default — does that reach an automated session?

	Yandex Browser	Google Chrome	Yandex Browser, headless	Google Chrome, headless
Final URL	http://ip-api.com/json/?fields=status	http://ip-api.com/json/?fields=status	http://ip-api.com/json/?fields=status	http://ip-api.com/json/?fields=status
HTTP status	200	200	200	200
Content loaded / warning page first	yes / no	yes / no	yes / no	yes / no

Playwright over the remote connection

Which client features work on this side.

	Yandex Browser	Google Chrome	Yandex Browser, headless	Google Chrome, headless
page.evaluate runs in the page's own world	yes	yes	yes	yes
addInitScript visible to page scripts	yes	yes	yes	yes
Console events	yes	yes	yes	yes
Request interception (page.route)	yes	yes	yes	yes
Screenshot	yes	yes	yes	yes
PDF	yes	yes	yes	yes
Mobile device emulation	yes	yes	yes	yes
Tracing	yes	yes	yes	yes

Rows where the two sides differ are highlighted. IP addresses are replaced with placeholders (203.0.113.x). The probe is compare/probe.mjs in our repository; the raw result is below.

Raw output

{
  "ran_at": "2026-10-28T02:03:57.466Z",
  "sides": [
    {
      "label": "Yandex Browser",
      "engine": "yandex",
      "body": {
        "headless": false
      },
      "launch": {
        "browser": "yandex",
        "resource_class": "linux_headful",
        "weight": 2,
        "launch_ms": 773,
        "connect_ms": 37,
        "example_ms": 1464,
        "peet_ms": 2193
      },
      "network": {
        "http_version": "h2",
        "ja4": "t13d1516h2_8daaf6152771_806a8c22fdea",
        "ja3_hash": "928bff687b6062df3843da90dc02b264",
        "peetprint_hash": "67c3e9111bed9e7f03d2f21d6d88994b",
        "ciphers": 16,
        "extensions": 18,
        "akamai_h2": "1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p",
        "akamai_h2_hash": "52d84b11737d980aef856699f885ca86",
        "header_order": [
          "method",
          "authority",
          "scheme",
          "path",
          "sec-ch-ua",
          "sec-ch-ua-mobile",
          "sec-ch-ua-platform",
          "upgrade-insecure-requests",
          "user-agent",
          "accept",
          "sec-fetch-site",
          "sec-fetch-mode"
        ]
      },
      "page": {
        "user_agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 YaBrowser/26.8.0.0 Safari/537.36",
        "platform": "Linux x86_64",
        "vendor": "Google Inc.",
        "languages": [
          "ru-RU",
          "ru",
          "en-US",
          "en"
        ],
        "hardware_concurrency": 16,
        "device_memory": 32,
        "max_touch_points": 0,
        "webdriver": false,
        "plugins": 5,
        "pdf_viewer": true,
        "ua_data": {
          "brands": [
            {
              "brand": "Not;A=Brand",
              "version": "8"
            },
            {
              "brand": "Chromium",
              "version": "150"
            },
            {
              "brand": "YaBrowser",
              "version": "26.8"
            },
            {
              "brand": "Yowser",
              "version": "2.5"
            }
          ],
          "mobile": false,
          "platform": "Linux",
          "architecture": "x86",
          "bitness": "64",
          "formFactors": [
            "Desktop"
          ],
          "fullVersionList": [
            {
              "brand": "Not;A=Brand",
              "version": "8.0.0.0"
            },
            {
              "brand": "Chromium",
              "version": "150.0.7871.1111"
            },
            {
              "brand": "YaBrowser",
              "version": "26.8.1.1111"
            },
            {
              "brand": "Yowser",
              "version": "2.5"
            }
          ],
          "model": "",
          "platformVersion": "",
          "uaFullVersion": "26.8.1.1111",
          "wow64": false
        },
        "screen": "1280x720x1280x720x24",
        "window": {
          "outer": "1288x805",
          "inner": "1280x720",
          "dpr": 1
        },
        "timezone": "UTC",
        "locale": "en-US",
        "webgl": {
          "vendor": "Google Inc. (Google)",
          "renderer": "ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)",
          "version": "WebGL 2.0 (OpenGL ES 3.0 Chromium)"
        },
        "canvas_hash": "f5a94624",
        "webgpu": true,
        "chrome_object": true,
        "chrome_runtime": false,
        "notification_permission": "default",
        "notification_query": "prompt",
        "has_focus": true,
        "connection_api": true,
        "stack_read_by_debugger": false,
        "features": {
          "iterator_includes": false,
          "iterator_join": false,
          "iterator_zip": false,
          "fontface_width": false,
          "css_text_decoration_inset": false,
          "css_scroll_axis_lock": false,
          "websocket_options_bag": null,
          "camera_element": false,
          "topics_api": true,
          "protected_audience": false,
          "shared_storage": true,
          "attribution_reporting": false,
          "request_storage_access_for": true,
          "webhid": true,
          "private_aggregation": false,
          "css_margin_trim": false,
          "css_text_decoration_skip_spaces": false,
          "css_corner_shorthand": false,
          "css_symbols": false,
          "stream_append_html": false,
          "webtransport_reliability": false,
          "window_maximize": false,
          "canvas_srgb_linear": false,
          "policy_media_playback_while_not_visible": false,
          "css_random": false,
          "css_scroll_snap_pair": false,
          "fenced_frames": true,
          "compression_dictionary": true
        }
      },
      "page_main_world": null,
      "sannysoft": {
        "checks": 57,
        "failed": 2,
        "failed_names": [
          "WebGL Renderer",
          "CHR_MEMORY"
        ],
        "passed": 29
      },
      "plain_http": {
        "final_url": "http://ip-api.com/json/?fields=status",
        "status": 200,
        "title": "",
        "loaded": true,
        "warning_page": false,
        "page_text": "{\"status\":\"success\"}"
      },
      "playwright": {
        "evaluate_in_main_world": true,
        "console_events": true,
        "init_script": true,
        "route": true,
        "screenshot": true,
        "pdf": true,
        "mobile_emulation": true,
        "tracing": true
      },
      "browser_version": "203.0.113.1"
    },
    {
      "label": "Google Chrome",
      "engine": "chrome",
      "body": {
        "headless": false
      },
      "launch": {
        "browser": "chrome",
        "resource_class": "linux_headful",
        "weight": 2,
        "launch_ms": 563,
        "connect_ms": 150,
        "example_ms": 2068,
        "peet_ms": 4548
      },
      "network": {
        "http_version": "h2",
        "ja4": "t13d1517h2_8daaf6152771_cb7bf5808d99",
        "ja3_hash": "d0fd11913a89adbd58c7b33abd4cb1d3",
        "peetprint_hash": "fc97c1cdfb1409c9a9326c1b726d1dee",
        "ciphers": 16,
        "extensions": 19,
        "akamai_h2": "1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p",
        "akamai_h2_hash": "52d84b11737d980aef856699f885ca86",
        "header_order": [
          "method",
          "authority",
          "scheme",
          "path",
          "sec-ch-ua",
          "sec-ch-ua-mobile",
          "sec-ch-ua-platform",
          "upgrade-insecure-requests",
          "user-agent",
          "accept",
          "sec-fetch-site",
          "sec-fetch-mode"
        ]
      },
      "page": {
        "user_agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36",
        "platform": "Linux x86_64",
        "vendor": "Google Inc.",
        "languages": [
          "en-US",
          "en"
        ],
        "hardware_concurrency": 64,
        "device_memory": 32,
        "max_touch_points": 0,
        "webdriver": false,
        "plugins": 5,
        "pdf_viewer": true,
        "ua_data": {
          "brands": [
            {
              "brand": "Not:A-Brand",
              "version": "8"
            },
            {
              "brand": "Chromium",
              "version": "156"
            },
            {
              "brand": "Google Chrome",
              "version": "156"
            }
          ],
          "mobile": false,
          "platform": "Linux",
          "architecture": "x86",
          "bitness": "64",
          "formFactors": [
            "Desktop"
          ],
          "fullVersionList": [
            {
              "brand": "Not:A-Brand",
              "version": "8.0.0.0"
            },
            {
              "brand": "Chromium",
              "version": "156.0.8078.47"
            },
            {
              "brand": "Google Chrome",
              "version": "156.0.8078.47"
            }
          ],
          "model": "",
          "platformVersion": "",
          "uaFullVersion": "156.0.8078.47",
          "wow64": false
        },
        "screen": "1280x720x1280x720x24",
        "window": {
          "outer": "1288x805",
          "inner": "1280x720",
          "dpr": 1
        },
        "timezone": "UTC",
        "locale": "en-US",
        "webgl": {
          "vendor": "Google Inc. (Google)",
          "renderer": "ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)",
          "version": "WebGL 2.0 (OpenGL ES 3.0 Chromium)"
        },
        "canvas_hash": "f5a94624",
        "webgpu": true,
        "chrome_object": true,
        "chrome_runtime": false,
        "notification_permission": "default",
        "notification_query": "prompt",
        "has_focus": true,
        "connection_api": true,
        "stack_read_by_debugger": false,
        "features": {
          "iterator_includes": true,
          "iterator_join": true,
          "iterator_zip": true,
          "fontface_width": true,
          "css_text_decoration_inset": false,
          "css_scroll_axis_lock": false,
          "websocket_options_bag": null,
          "camera_element": true,
          "topics_api": true,
          "protected_audience": true,
          "shared_storage": false,
          "attribution_reporting": false,
          "request_storage_access_for": false,
          "webhid": true,
          "private_aggregation": false,
          "css_margin_trim": true,
          "css_text_decoration_skip_spaces": false,
          "css_corner_shorthand": false,
          "css_symbols": true,
          "stream_append_html": false,
          "webtransport_reliability": false,
          "window_maximize": false,
          "canvas_srgb_linear": false,
          "policy_media_playback_while_not_visible": true,
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}

Bottom line

Yandex Browser is a Chromium browser that tells every site it's Yandex: its own brands in the user agent and client hints, Russian first in navigator.languages, a TLS hello one extension short of Chrome's, the same HTTP/2 and headers, and an engine six Chromium majors behind.

Both cost the same two threads headful and one headless; choose by which browser the site should believe it's talking to.