The teams app appears to be problematic whenever multiple users share an iPad. The problem is, the one user may sign out, but if another user has a profile on the same ipad and clicks theirs to sign into teams, it will bypass all security and open up in the previous user's account who just signed out. Obviously, quite a real privacy issue.
here is a link to the situation as observed by others.
The only way around this at present is to go into settings and clear the app data. The toggle appears as a switch, suggesting this is a one-time setting change, but it is not. Is there any way to install teams for iPad where exiting the program automatically clears the app's data?