You can create breakout rooms in Google Meet as a way to divide a conference call into smaller sessions.

Breakout rooms let you separate people in a meeting into smaller groups, where they can have their own private conversations, and then come back to the larger meeting later. To create a breakout room ...

Click the Breakout room button on meeting control bar (it may be under the More menu). Choose the number of rooms you want to create and how many attendees should be in each. Attendees can be moved ...