Microsoft has updated the Teams meeting policy to restrict automatic meeting joining (aka lobby bypass) to organizers. This is likely to be most popular with schools, but enterprirse will see value in being able to force participants to pass through the meeting lobby before joining in some circumstances. And remember, a meeting organizer can always change the settings before the meeting begins.
https://office365itpros.com/2020/08/10/teams-meeting-policy-restricts-automatic-meeting-joins-organi...
