join button when all invitees on teams
If all attendees and the organizer of a scheduled meeting are all part of the same organization on Teams:
Then the meeting should include a Join function, without regard to how the meeting was scheduled.
As a user, I have some meetings which were scheduled via Outlook or some other means which do not include a Join button. This causes the need for a new chat to be created by an attendee which is then used as the meeting call. By adding the join function to all meetings which include only related Teams users, it would eliminate this extra step.