The Meeting Lobby is a space where people can request access to join a meeting when they either do not have an invitation or they have been invited, but the meeting is locked. The Meeting Lobby is similar to a reservationless audio conference, in which attendees can attempt to join a meeting at any time regardless of their invitation status.
You can also share the Meeting Lobby URL with anybody who might be interested in attending your meeting. Attendees can attempt to join a meeting by typing the meeting lobby URL directly in their Web browser. If you do not see a Meeting Lobby URL, Meeting Lobby is not enabled for the meeting. You can make the Meeting Lobby available for both Meet Now meetings and scheduled meetings.