Updated: December 8, 2022
Our team has uncovered a serious MacOS Ventura bug for screen sharing!
If you share a window when using Stage Manager in MacOS using Chrome, and switch away from that window (say, back to your browser window), the screen share shows only a static and quite a garbled image of your screen share.
Stage Manager is quite a new feature and must be explicitly turned on. However, if you are having this issue the fix is to turn off Stage Manager which can be done from the Control Panel:
Note: The Chrome team is aware of the issue and will hopefully issue a fix soon.