Can I use
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CSS background-attachment

- CR

Method of defining how a background image is attached to a scrollable element. Values include scroll (default), fixed and local.

IE

  1. 5.5 - 8: Partial support
  2. 9 - 10: Supported
  3. 11: Supported

Edge

  1. 12 - 84: Supported
  2. 85: Supported

Firefox

  1. 2 - 24: Partial support
  2. 25 - 79: Supported
  3. 80: Supported
  4. 81 - 82: Supported

Chrome

  1. 4 - 84: Supported
  2. 85: Supported
  3. 86 - 88: Supported

Safari

  1. 3.1 - 4: Partial support
  2. 5 - 13.1: Supported
  3. 14: Supported
  4. TP: Supported

Opera

  1. 9 - 10.1: Partial support
  2. 10.5 - 69: Supported
  3. 70: Supported

iOS Safari

  1. 3.2 - 4.3: Not supported
  2. 5 - 13.7: Partial support
  3. 14.0: Partial support

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4: Not supported
  2. 4.1 - 4.3: Partial support
  3. 4.4 - 4.4.4: Not supported
  4. 81: Not supported

Blackberry Browser

  1. 7: Partial support
  2. 10: Partial support

Opera Mobile

  1. 10: Partial support
  2. 11 - 12.1: Supported
  3. 46: Supported

Chrome for Android

  1. 85: Supported

Firefox for Android

  1. 79: Supported

IE Mobile

  1. 10: Supported
  2. 11: Supported

UC Browser for Android

  1. 12.12: Supported

Samsung Internet

  1. 4: Not supported
  2. 5 - 11.2: Partial support
  3. 12.0: Partial support

QQ Browser

  1. 10.4: Supported

Baidu Browser

  1. 7.12: Partial support

KaiOS Browser

  1. 2.5: Supported

Most mobile devices have a delay in updating the background position after scrolling a page with fixed backgrounds.

Resources:
MDN Web Docs - background-attachment