You probably have noticed that all meetings in Outlook are now Teams Meeting by default. This behavior is new and came with the latest Microsoft update.
- In Outlook, click on File and select Options (lower-left corner)
 - Select Calendar
 - Uncheck “Add online meeting to all meeting"
 - Click Ok to save and close the options screen. If you now create a new meeting you will see that the Teams link is gone. Users can still create a Teams Meeting by simply clicking on the Teams Meeting icon.