In Case You Missed It! Here are the tips from the Mac Daily.
What can you do with the new Google Chat? Create a Room! [July 17 2020]
Create a room in Google Chat to provide a place where your group can communicate and collaborate.
You can allow people outside your organization to join a room, but you must do so when you create the room. If you allow external people in a room, they must either have a G Suite account with another organization or a personal Google Account (usually ending in @gmail.com).
Rooms vs. group messages
You can use a room or a group message in Google Chat to chat with two or more people. To help you decide which to use, checkout the Rooms vs. group messages table describing the differences between group messages and rooms. Learn how to create a Chat Rooms.
Start multiple conversations in a Chat Room [July 21 2020]
Use the new Google Chat to discuss different topics within a Room. Having multiple ongoing conversations helps everyone share information and ideas. Start a new thread and follow relevant ones helps you stay in touch and focused. Learn how to create and follow Chat Room threads.