&prefercurrenttab

Will have the current tab as the default screen-share source

Sender-Side Option! (&push)

Details

&prefercurrenttab will have the current tab as the default screen-share source.

For more details on these new features see here: https://developer.chrome.com/docs/web-platform/screen-sharing-controls/ (Chrome/chromium-browsers only)

Related

&screenshare