More Ubuntu Sound input issues

[qv]

Hi,

I've got an Ubuntu machine with multiple known-good sound input devices but put no sound into any zoom meetings.       Both my built-ins and multiple USB devices, all tested with multiple other apps. 

Interesting thing is, in the Audio Settings panel of Zoom, the actual input (the little input bar) seems to detect input from all these devices but not in actual meetings.   

I've read several threads with people having this problem but found no solution here that seems to work.     Is there a bug report form?