It would be nice if there were an app or plugin that would aggregate them into one heading or folder. So that on the user end all of the Gaming@ Lemmy.lm Gaming@ Beehaw, etc etc just show up under #Gaming on the users end. It would also improve the longevity of the smaller ones since we can already post across instances.
That said I'm an idiot and not even remotely sure how that would get set up :).
There is a multi-reddit issue open on github. As soon as someone actually codes it, it'll be there.
I'm trying to learn Rust atm to contribute, but very likely someone will code that up before I'm ready to actually submit pull requests and not be laughed out of the room.