Teams causes Windows Explorer to crash.
I had a problem last week where Windows Explorer was crashing. I stopped using Teams and the problem was resolved.
I am experiencing constant crashing when teams is in use too.
I notice this sometimes when I close (aka quit) Teams the start menu becomes unresponsive either by mouse or using the Start key. Only solution is to reboot OR kill Windows Explorer in Task Manager then restarting explorer.exe from Task Manager > File > Run new task.