Can I use
?

CSS Canvas Drawings

- UNOFF

Method of using HTML5 Canvas as a background image. Not currently part of any specification.

Chrome

  1. 4 - 47: Supported
  2. 48 - 116: Not supported
  3. 117: Not supported
  4. 118 - 120: Not supported

Edge

  1. 12 - 116: Not supported
  2. 117: Not supported

Safari

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

Firefox

  1. 2 - 116: Not supported
  2. 117: Not supported
  3. 118 - 120: Not supported

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 34: Supported
  3. 35 - 101: Not supported
  4. 102: Not supported

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: Supported
  2. 17.0: Supported
  3. 17.1: Supported

Samsung Internet

  1. 4: Supported
  2. 5 - 21: Not supported
  3. 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: 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: Not supported
  2. 3: Not supported

A similar effect can be achieved in Firefox 4+ using the -moz-element() background property

Resources:
WebKit blog post