In larger Teams meetings it can be distracting with the constant ding-ding sound when people join the lobby:
If you are the organizer of a meeting, you can choose to skip the Lobby feature.
In an active meeting
In the Teams meeting window, click on the three dots.
Click on Meeting Options.
In the Meeting options, at the option Who can bypass the lobby?, select Everyone (or another scope you prefer), then click on Save.
Before the meeting
Open the Calendar in Microsoft Teams.
Find the future meeting that you want to disable the Lobby for, click on it, and chose Edit.
In the meeting details, click on Meeting options.
In the Meeting options, at the option Who can bypass the lobby?, select Everyone (or another scope you prefer), then click on Save.