Can I use
?

Shared Array Buffer

- OTHER

Type of ArrayBuffer that can be shared across Workers.

Chrome

  1. 4 - 59: Not supported
  2. 60 - 67: Disabled by default
  3. 68 - 90: Supported
  4. 91 - 118: Supported
  5. 119: Supported
  6. 120 - 122: Supported

Edge

  1. 12 - 15: Not supported
  2. 16 - 18: Disabled by default
  3. 79 - 90: Supported
  4. 91 - 118: Supported
  5. 119: Supported

Safari

  1. 3.1 - 10: Not supported
  2. 10.1 - 15.1: Disabled by default
  3. 15.2 - 17.0: Supported
  4. 17.1: Supported
  5. 17.2 - TP: Supported

Firefox

  1. 2 - 56: Not supported
  2. 57 - 73: Disabled by default
  3. 74 - 78: Disabled by default
  4. 79 - 119: Supported
  5. 120: Supported
  6. 121 - 123: Supported

Opera

  1. 9 - 46: Not supported
  2. 47 - 63: Disabled by default
  3. 64 - 77: Supported
  4. 78 - 103: Supported
  5. 104: Supported

IE

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

Chrome for Android

  1. 119: Supported

Safari on iOS

  1. 3.2 - 10.2: Not supported
  2. 10.3 - 15.1: Disabled by default
  3. 15.2 - 17.0: Supported
  4. 17.1: Supported
  5. 17.2: Supported

Samsung Internet

  1. 4 - 14.0: Not supported
  2. 15.0 - 22: Supported
  3. 23: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

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

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 119: Not supported

Firefox for Android

  1. 119: Supported

QQ Browser

  1. 13.1: Not supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Not supported
  2. 3: Supported
Resources:
MDN article
Mozilla Hacks article on safely reviving shared memory