Can I use
?

CSS font-size-adjust

- REC

Method of adjusting the font size in a matter that relates to the height of lowercase vs. uppercase letters. This makes it easier to set the size of fallback fonts.

Chrome

  1. ❌ 4 - 42: Not supported
  2. ❌ 43 - 119: Disabled by default
  3. ❌ 120 - 126: Disabled by default
  4. ✅ 127 - 135: Supported
  5. ✅ 136: Supported
  6. ✅ 137 - 139: Supported

Edge

  1. ❌ 12 - 18: Not supported
  2. ❌ 79 - 116: Disabled by default
  3. ❌ 117 - 126: Disabled by default
  4. ✅ 127 - 135: Supported
  5. ✅ 136: Supported

Safari

  1. ❌ 3.1 - 16.3: Not supported
  2. ◐ 16.4 - 16.6: Partial support
  3. ✅ 17.0 - 18.4: Supported
  4. ✅ 18.5: Supported
  5. ✅ TP: Supported

Firefox

  1. ❌ 2: Not supported
  2. ◐ 3 - 91: Partial support
  3. ◐ 92 - 117: Partial support
  4. ✅ 118 - 137: Supported
  5. ✅ 138: Supported
  6. ✅ 139 - 141: Supported

Opera

  1. ❌ 9 - 29: Not supported
  2. ❌ 30 - 101: Disabled by default
  3. ❌ 102 - 112: Disabled by default
  4. ✅ 113 - 116: Supported
  5. ✅ 117: Supported

IE

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

Chrome for Android

  1. ✅ 136: Supported

Safari on iOS

  1. ❌ 3.2 - 16.3: Not supported
  2. ◐ 16.4 - 16.7: Partial support
  3. ✅ 17.0 - 18.4: Supported
  4. ✅ 18.5: Supported

Samsung Internet

  1. ❌ 4 - 26: Not supported
  2. ❌ 27: Not supported

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ❌ 10 - 12.1: Not supported
  2. ❌ 80: Not supported

UC Browser for Android

  1. ❌ 15.5: Not supported

Android Browser

  1. ❌ 2.1 - 4.4.4: Not supported
  2. ✅ 136: Supported

Firefox for Android

  1. ✅ 137: Supported

QQ Browser

  1. ❌ 14.9: Disabled by default

Baidu Browser

  1. ❌ 13.52: Not supported

KaiOS Browser

  1. ❌ 2.5: Not supported
  2. ◐ 3: Partial support
Resources:
WebKit support bug #15257
MDN Web Docs - CSS font-size-adjust
Article on font-size-adjust