Teams Calendar improvement
There are several improvements that require the use of outlook calendar to have Teams.
1) change busy/free/out of office in the event in teams versus in outlook
2) month view
3) integration of channel events and calendar. Especially now that channel events can be scheduled. If an event is held in a channel the members of that channel (or private channel) should get a calendar invite.
4) stop the repeated updates sent to email after a new attendee is adding to a meeting.