Can I use
?

contenteditable attribute (basic support)

- LS

Method of making any HTML element editable.

Chrome

  1. 4 - 116: Supported
  2. 117: Supported
  3. 118 - 120: Supported

Edge

  1. 12 - 116: Supported
  2. 117: Supported

Safari

  1. 3.1 - 16.5: Supported
  2. 16.6: Supported
  3. 17.0 - TP: Supported

Firefox

  1. 2: Not supported
  2. 3: Partial support
  3. 3.5 - 116: Supported
  4. 117: Supported
  5. 118 - 120: Supported

Opera

  1. 9 - 101: Supported
  2. 102: Supported

IE

  1. 5.5 - 10: Supported
  2. 11: Supported

Chrome for Android

  1. 117: Supported

Safari on iOS

  1. 3.2 - 4.3: Not supported
  2. 5 - 16.6: Supported
  3. 17.0: Supported
  4. 17.1: Supported

Samsung Internet

  1. 4 - 21: Supported
  2. 22: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12: Not supported
  2. 12.1: Supported
  3. 73: Supported

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 2.3: Not supported
  2. 3 - 4.4.4: Supported
  3. 117: Supported

Firefox for Android

  1. 117: Supported

QQ Browser

  1. 13.1: Supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Supported
  2. 3: Supported

This support only refers to very basic editing capability, implementations vary significantly on how certain elements can be edited.

Resources:
Blog post on usage problems
WHATWG blog post
MDN Web Docs - contentEditable attribute
WebPlatform Docs