Can I use
?

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 - 85: Partial support
  3. 86: Partial support

Firefox

  1. 2 - 24: Not supported
  2. 25 - 80: Partial support
  3. 81: Partial support
  4. 82 - 83: Partial support

Chrome

  1. 4: Not supported
  2. 5 - 85: Partial support
  3. 86: Partial support
  4. 87 - 89: Partial support

Safari

  1. 3.1 - 3.2: Not supported
  2. 4 - 13.1: Partial support
  3. 14: Partial support
  4. TP: Partial support

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 70: Partial support
  3. 71: Partial support

iOS Safari

  1. 3.2 - 13.7: Not supported
  2. 14: Not supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 81: Not supported

Blackberry Browser

  1. 7: Not supported
  2. 10: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 59: Not supported

Chrome for Android

  1. 85: Not supported

Firefox for Android

  1. 79: Not supported

IE Mobile

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

UC Browser for Android

  1. 12.12: Not supported

Samsung Internet

  1. 4 - 11.2: Not supported
  2. 12.0: 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