Q.Troubleshooting black screen during screen sharing
If your screen goes black during screen sharing in a meeting, please try troubleshooting using the following support page as a reference. Additionally, changing the setting under “Settings - Share Screen - Advanced - Screen capture mode” from ‘Auto’ to “Capture with window filtering” may also resolve the issue.
You can change the participants (host only / all participants) who can share screen from the "Settings" of {+}Zoom web portal. "Settings - Meeting tab - In Meeting (Basic) - Screen sharing"