Board Game Arena

Hello, I could not find this by searching. I often see a "[Player X" left the chat" message after a game, even when the player appears to still be a spectator. Meanwhile I see no option to leave the chat myself, and sometimes I would like to do this.

Sometimes I even close out the game, and then I still see unwanted messages popping up in a small minimized chat window and the bottom right of my screen. Can someone tell me how I leave the chat? Thank you

Did you mean to post this in the Catan forum?
I don't know the answer, but this doesn't seem to be a question related to Catan, just about a general BGA feature. You should probably post it in the main BGA discussions forum, https://boardgamearena.com/forum/viewforum.php?f=3 - lots more people will see it there, you're more likely to get answers.