Product Ask: a GPT interface that will summarize in a few sentences, all conversations in a [chatroom, discord, subreddit, etc.] since I last visited.
Indirectly working on that class of functional idea Ben. Smart, early. Instincts!
@beautifulcode has been talking about a TLDR for Discord for a bit. I am personally nudging him to make time for it. Hoping he sees your post too.
No one uses it outside of Google, but they actually have this in Chat and it was great https://support.google.com/chat/answer/12918975?hl=en&co=GENIE.Platform%3DDesktop
I think someone shared something similar to your needs. Unfortunately I didn't save it.