Can I use
?

CSS font-smooth

- UNOFF

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

Chrome

  1. 4: Not supported
  2. 5 - 116: Partial support
  3. 117: Partial support
  4. 118 - 120: Partial support

Edge

  1. 12 - 18: Not supported
  2. 79 - 116: Partial support
  3. 117: Partial support

Safari

  1. 3.1 - 3.2: Not supported
  2. 4 - 16.5: Partial support
  3. 16.6: Partial support
  4. 17.0 - TP: Partial support

Firefox

  1. 2 - 24: Not supported
  2. 25 - 116: Partial support
  3. 117: Partial support
  4. 118 - 120: Partial support

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 101: Partial support
  3. 102: Partial support

IE

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

Chrome for Android

  1. 117: Not supported

Safari on iOS

  1. 3.2 - 16.6: Not supported
  2. 17.0: Not supported
  3. 17.1: Not supported

Samsung Internet

  1. 4 - 21: Not supported
  2. 22: Not supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 73: Not supported

UC Browser for Android

  1. 15.5: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 117: Not supported

Firefox for Android

  1. 117: Not supported

QQ Browser

  1. 13.1: Not supported

Baidu Browser

  1. 13.18: Not supported

KaiOS Browser

  1. 2.5: Partial support
  2. 3: 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