Make status change alerts clearer
The desktop notifications for when team members are 'available' and 'unavailable' are really helpful - I see them as people popping into and out of the office. It's a quick way to be prompted to send a team member that question you've been meaning to ask but don't want to send an email about.
However, they are not obviously visually different, save for the message accompanying the pop-up. It would be good if when the popup says they have become available it was green and red for unavailable for example. Particularly when I load Teams in the morning, the notifications for all my immediate teammates appear and i have to really quickly read every one to see who is in and who out. I seem to remember with Skype for Business they had a the status dot as an indicator?