My idea is that maybe there can be a shout-box on the main page, and then a full chatroom on a dedicated page. The main page in general I've worried pulls away from the forum topics. Having the art box and shout-box are great additions, but having them up top both bring focus away from the forum posts and add a cramped feel. I barely noticed, but I think psychologically it's made me less inclined to check forum posts! I'll peep into the chat, art showcase, and then leave.
I think, Melon, that shuffling things around could be a good experiment! Move some panels up, shift others down, idk! Go crazy! Alternatively, make the chatbox a toggle in profile preferences? I've never been super into it. But I'm also not super into public Discord servers either, so I'm incredibly biased. But then again... that's why I come to forums! I like the slower, longer-form discussions.