Accessing and using Microsoft Teams on smartphones and tablets across platforms
Same issue here. On Pixel 4a 5G. OS and all apps up to date. Teams continues to refresh making it unusable. Occasionally closing other apps helps but not always. I have not tried the WiFi workaround yet.
Best guess - this a is a significant bug related to selecting the most appropriate WAN connection (WiFi or Mobile network).
Issue started on a specific date - I am guessing in relation to an update or a back-end change but I am not sure when. Its been happening for just over a week.