On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 74 on 2019-04-23 Note: On Windows and ChromeOS, the entire system audio can be captured when sharing an entire screen. On Linux and macOS, only the audio of a tab can be captured.
Not in Chrome Android
In Edge version 79 on 2020-01-15 Note: On Windows and ChromeOS, the entire system audio can be captured when sharing an entire screen. On Linux and macOS, only the audio of a tab can be captured.
Not in Firefox
Not in Firefox for Android
Not in Internet Explorer
Not in Quest Browser
In Opera version 62 on 2019-06-27 Note: On Windows and ChromeOS, the entire system audio can be captured when sharing an entire screen. On Linux and macOS, only the audio of a tab can be captured.
Not in Opera Android
Not in Safari
Not in Safari on iOS
Not in Samsung Internet
Not in WebView Android
Not in WebView on iOS