Can I use
?

URL Scroll-To-Text Fragment

- UNOFF

URL fragment that defines a piece of text to be scrolled into view and highlighted.

Chrome

  1. 4 - 73: Not supported
  2. 74 - 80: Disabled by default
  3. 81 - 113: Supported
  4. 114: Supported
  5. 115 - 117: Supported

Edge

  1. 12 - 18: Not supported
  2. 79 - 81: Disabled by default
  3. 83 - 113: Supported
  4. 114: Supported

Safari

  1. 3.1 - 16.0: Not supported
  2. 16.1 - 16.4: Supported
  3. 16.5: Supported
  4. 16.6 - TP: Supported

Firefox

  1. 2 - 112: Not supported
  2. 113: Not supported
  3. 114 - 115: Not supported

Opera

  1. 9 - 65: Not supported
  2. 66 - 67: Disabled by default
  3. 68 - 98: Supported
  4. 99: Supported

IE

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

Chrome for Android

  1. 114: Supported

Safari on iOS

  1. 3.2 - 16.0: Not supported
  2. 16.1 - 16.4: Supported
  3. 16.5: Supported
  4. 17: Supported

Samsung Internet

  1. 4 - 12.0: Not supported
  2. 13.0 - 20: Supported
  3. 21: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

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

UC Browser for Android

  1. 13.4: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 113: Supported

Firefox for Android

  1. 113: Not supported

QQ Browser

  1. 13.1: Not supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Not supported
  2. 3: Not supported
Resources:
Article about why the `:~:` syntax
Firefox support bug
Safari's position as of Jan 2020
Current Firefox position