Creating a Teams meeting that allows outside guests to bypass the meeting
1. Create your meeting first in your calendar, making sure its set as a team meeting.

2. Once its created, go back into the meeting, click edit and CRTL click on the Meeting Options link

3. Set your meeting options and click save

4. Once you have made the changes, you should be able to share the link and the meeting information after that.
NOTE: I believe that someone will have to monitor the lobby just in case.