Same issues here, and it's not just Teams. My Outlook app is having sync issues. For example, I hear the alert for a new email and can see the message in the notification tray of android, but when I open the actual app the emails are not in my inbox.
Turning WIFI off fixes the issue as well as the Teams constantly refreshing issue.
Is this problem only happening on Pixel devices??
I have the same problem with outlook as well. I see new notifications but the outlook app appears to not sync.
Teams will do a constant refresh circle.
Confirmed that shutting off wifi fixes it. Pixel 5 with the most current security update, Microsoft apps are current.
I don't know if it is related but my organization uses app protection policies and requires either a fingerprint unlock or an app pin. It seems to get stuck in a loop and not prompt for a fingerprint or app pin.