Small but useful feature added to Teams. During Teams meetings when the desktop is shared, the communication option windows used to stay on the screen. This windows often overlapped important areas of the screen. The only way to avoid that interference was to manually move it to the bottom right corner (or some such inconspicuous area).
Now the problem is solved. There is a nice Minimize button. The window disappears. Job done.
How to get it back? Look at the Taskbar and click on the Teams app icon. There is another window visible. Click on it to get the window back.
This applies to the Desktop Teams App only.