I did not find a way to change the image of a group chat (NOT a team) in microsoft teams under Chat. If I click on the edit pencil, I can only change the name of the group.
MacOS: 12.0.1
I did not find a way to change the image of a group chat (NOT a team) in microsoft teams under Chat. If I click on the edit pencil, I can only change the name of the group.
MacOS: 12.0.1
As @spikey_richie stated in a comment, the image is a montage of the avatars of the members of the chat.
So if none of the users have an image assigned to their Teams account, the default is what you see. You can't specify a custom image on a group chat.