Don't close team when switching between "Teams" and "Chats"
I have teams with channels that I use, as well as private "chats." When I switch between the "Chat" window and the "Teams" window, the teams all close. This makes it require too many clicks to get from a chat to a team. Ideally they would not close.
(I would actually MUCH prefer there was no separation between Chats and Teams because conceptually they're the same thing -- talking to people, but that's still under review.)
Kyle Beckwith commented
Agreed, I tend to opt for group chats with shared files/tabs instead of teams. The experience when switching between these is not fluid.