System audio (i.e. Zoom calls) can be captured only on Chromium browsers on Windows and ChromeOS when sharing the entire screen; tab audio has wider OS support; Safari and Firefox do not support system or tab audio capture https://addpipe.com/docs/recording-client/screen-recording/#...
The MDN support table does not differentiate in this regard. (le: it actually does if you click to see the implementation notes)
The MDN support table does not differentiate in this regard. (le: it actually does if you click to see the implementation notes)