Group Chat in Teams

Not every interaction deserves a full Team creation or its own Channel. In many cases, a simple Group Chat is enough for short term collaboration with others internally and externally.

At the top of your Group, you can:

Select the Chat’s picture to choose a group picture. You can scroll through the available emojis, Remove the current picture, or Upload a picture. (This option is only available in Teams for Windows.)

• Name or Rename the Group.
• View and add participants or remove people from the Group.
• Share files and start a  Video Call or  Audio Call from the Group.
• Pop out chat to open the Chat in its own window.
• Screen sharing shares your screen to the Group. (This option is not yet available in Teams for Windows 11.)
• Select  Pin from the context [...] menu in the Chat list to keep the Group at the top.

Source: Create a group chat