Can I use
?

Internationalization API

- OTHER

Locale-sensitive collation (string comparison), number formatting, and date and time formatting.

IE

  1. 5.5 - 10: Not supported
  2. 11: Supported

Edge

  1. 12 - 102: Supported
  2. 103: Supported

Firefox

  1. 2 - 28: Not supported
  2. 29 - 101: Supported
  3. 102: Supported
  4. 103 - 104: Supported

Chrome

  1. 4 - 23: Not supported
  2. 24 - 102: Supported
  3. 103: Supported
  4. 104 - 106: Supported

Safari

  1. 3.1 - 9.1: Not supported
  2. 10 - 15.4: Supported
  3. 15.5: Supported
  4. 16.0 - TP: Supported

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 85: Supported
  3. 86: Supported
  4. 87: Supported

Safari on iOS

  1. 3.2 - 9.3: Not supported
  2. 10 - 15.4: Supported
  3. 15.5: Supported
  4. 16.0: Supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.3: Not supported
  2. 4.4 - 4.4.4: Supported
  3. 103: Supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 64: Supported

Chrome for Android

  1. 103: Supported

Firefox for Android

  1. 101: Supported

UC Browser for Android

  1. 12.12: Supported

Samsung Internet

  1. 4 - 16.0: Supported
  2. 17.0: Supported

QQ Browser

  1. 10.4: Not supported

Baidu Browser

  1. 7.12: Supported

KaiOS Browser

  1. 2.5: Not supported
Resources:
The ECMAScript Internationalization API
WebKit tracking bug
Firefox for Android tracking bug
Working With Intl
MDN Web Docs - Internationalization
Sub-features:
Intl.PluralRules API