Can I use
?

letter-spacing CSS property

- REC

Controls spacing between characters of text (i.e. "tracking" in typographical terms). Not to be confused with kerning.

IE

  1. 5.5: Support unknown
  2. 6 - 8: Partial support
  3. 9 - 10: Supported
  4. 11: Supported

Edge

  1. 12 - 94: Supported
  2. 95: Supported

Firefox

  1. 2 - 92: Supported
  2. 93: Supported
  3. 94 - 95: Supported

Chrome

  1. 4 - 29: Partial support
  2. 30 - 94: Supported
  3. 95: Supported
  4. 96 - 98: Supported

Safari

  1. 3.1: Support unknown
  2. 3.2 - 6: Partial support
  3. 6.1 - 14.1: Supported
  4. 15: Supported
  5. TP: Supported

Opera

  1. 9 - 9.6: Support unknown
  2. 10 - 16: Partial support
  3. 17 - 79: Supported
  4. 80: Supported

Safari on iOS

  1. 3.2: Support unknown
  2. 4 - 14.8: Supported
  3. 15: Supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 2.2: Support unknown
  2. 2.3 - 4.3: Partial support
  3. 4.4 - 4.4.4: Supported
  4. 94: Supported

Opera Mobile

  1. 10 - 12.1: Partial support
  2. 64: Supported

Chrome for Android

  1. 94: Supported

Firefox for Android

  1. 92: Supported

UC Browser for Android

  1. 12.12: Supported

Samsung Internet

  1. 4 - 14.0: Supported
  2. 15.0: Supported

QQ Browser

  1. 10.4: Supported

Baidu Browser

  1. 7.12: Supported

KaiOS Browser

  1. 2.5: Supported
Resources:
MDN Web Docs - CSS letter-spacing