If you're hosting a meeting with several people, it can get tough to keep track of who's there. You can view a list of everyone participating, mute and unmute people, and control who's attending.
In addition to locking the meeting, you can decide whether guests can control their own audio and video, mute new guests when they join, and toggle whether to use the waiting room or not.
Finally, if you're hosting a meeting but need to leave, while still allowing the meeting to continue, you'll need to assign another person as the host.