The tab lets you create links for calls, so instead of creating a group, you can just share the link with people — similar to how Meet, Zoom and Teams function. The links are reusable, so you can use them for recurring meetings as well.
You also get commonly seen management features like the ability to name calls, manually allow people join meetings, or kick, remove and block them. Participants can queue up to ask questions through a Meet-esque hand-raising feature.