Make Contacts its own page WITHOUT the last chat in the background. Able to set as the default page to leave open all day - like Skype did.
Teams takes up too much of the screen when not in use. Skype was much better with its list of My Group and Favorites, so you could see status at a glance... AND it could be a very narrow profile open all day on the screen. Teams default footprint is TOO BIG.
AND don't display the last chat in the background!!
Give function to end a Chat and give a clear background so the last chat isn't sitting in the background hours after you are done - this is extremely annoying and a problem in an open office where people can walk by and read sensitive info from last chat at any time.