Yes, it's odd. For those who haven't used Teams, it defaults to showing you a team's channels you use most frequently (I guess? I never quite understood the logic) and then you have to click to see the full list. Maddening.
As a result, I ignore them all.
They need some sort of “feed” feature.
Unfortunately your killall workaround does not work for me. I have to restart my laptop every time I have a Teams meeting -.-
I'm quite a happy user of Teams, the only thing I'm missing is ability to share my desktop with giving control to a remote caller - but I only needed that maybe once or twice over this entire year so far.
Note that outside of audio being disabled on a regular basis (and there being no way of setting it back up properly), I am also happy with the product. It beats Skype Business, which I could never get to work on Linux.
The calendar integration is nice and the video chats are good, but The Linux version of their client just stops pulling audio all the time unless I do a `killall -9 pulseaudio` and restart it (and it's the only app left where I still have to do that).
Teams gets a big "Meh" for me on calls and awful for text chat.