Let's not forget how stupid the client on GNU/Linux was regarding audio devices. Every other app I had installed, that has anything to do with microphone (OBS, Audacity, Discord, Discord in Browser, Signal, ...) recognized my mic, which was connected via jack. Not MS Te-eams!!! Tada! Had to buy another headset with USB plug for Teams to get it.

I get the same issue on Mac, if it's any comfort. I had to close and reopen the app 7-8 times to have my microphone recognized, despite it worked reliably on every single tool I ever used, both on Linux and later on Mac. Teams couldn't do that either with the native client or with the web client.