Hi Salvatore, Thank you for the reply!
If you reliably can reproduce the issue then (although I realize that each testing step is time consuming), I would suggest to start a bisect.
Unfortunately I cannot reproduce it alone, I need someone else to be in the Zoom room. Also, I only have that webcam in the office, and I shouldn't spend hours of my employer's time on bisects. ;) I guess I could take it home over a weekend or so, but I'd still need a way to reproduce the issue alone, and find a weekend day where I have nothing else to do.
So, a bisect is not currently practical I am afraid. I was hoping someone else might know better ways to reproduce this, e.g. some open-source program that also does whatever Zoom does when it reconfigures the camera when someone joins the call.
In case that changes in the future --Do you know some folder(s) that the bisect could be limited to? That would cut down the number of steps significantly.
Kind regards, Ralf
First though narrow down more closely the Debian versions which expose the problen and not (using the images fetched from https://snapshot.debian.org/). Once you have two upstream versions close enough, start a bisect. Do you need instructions/help on how to do that? Regards, Salvatore