"Join Online" should dismiss the reminder
When you click the "Join Online" Button for a Teams Meeting reminder, please dismiss the reminder.
The popup windows on meeting notifications should not be popping up when the meetings are attended / completed through the links provided through pop-up windows.
Since, the meetings schedule/timeframe is fixed in Outlook Calendar, there should not be any popup windows once the meeting(s) time /duration is completed since there is no point in displaying about a finished meeting.
At there should be an option in the settings to set the status of the popping up windows about the meetings.
Sam B commented
When a meeting notification comes up, it should dismiss it and close the notification dialog when you click on the event and click the Join Online button. Instead of having us go back to the notification to manually dismiss it.