CSS font-smooth

- UNOFF

Controls the application of anti-aliasing when fonts are rendered.

IE

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

Edge

  1. 12 - 18: Not supported
  2. 79 - 100: Partial support
  3. 101: Partial support

Firefox

  1. 2 - 24: Not supported
  2. 25 - 99: Partial support
  3. 100: Partial support
  4. 101 - 102: Partial support

Chrome

  1. 4: Not supported
  2. 5 - 100: Partial support
  3. 101: Partial support
  4. 102 - 104: Partial support

Safari

  1. 3.1 - 3.2: Not supported
  2. 4 - 15.3: Partial support
  3. 15.4: Partial support
  4. TP: Partial support

Opera

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

Safari on iOS

  1. 3.2 - 15.3: Not supported
  2. 15.4: Not supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 101: Not supported

Opera Mobile

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

Chrome for Android

  1. 101: Not supported

Firefox for Android

  1. 100: Not supported

UC Browser for Android

  1. 12.12: Not supported

Samsung Internet

  1. 4 - 15.0: Not supported
  2. 16.0: Not supported

QQ Browser

  1. 10.4: Not supported

Baidu Browser

  1. 7.12: Not supported

KaiOS Browser

  1. 2.5: Partial support

Though present in early (2002) drafts of CSS3 Fonts, font-smooth has been removed from this specification and is currently not on the standard track.

Resources:
MDN Web Docs - font-smooth
Old version of W3C recommendation containing font-smooth