My AirPods just don’t want to work with Teams. Zoom and BlueJeans seem fine. The Max make some sort of noise that others can hear (but not me), today both the Max and the regular AirPods were seemingly connected, but I didn’t have audio either way. I wound up using the built-in mic and speakers.
iMac Pro (2017) BigSur 11.3
Edit: Just found that no Apple products are “certified.” How stupid.