Additional features, settings, or issues not covered by specific Microsoft Teams categories
I had the same problem. When you set it up in device settings, set the microphone to the computer microphone and/camera mic. Then, set the speakers to the AirPods. This at least lets you use the AirPods, but does not allow you to move around as freely if you are participating in the meeting.
Annoying that they can't be used for both speakers and mic, but at least this is a workaround.
Screenshot to support.