For me, my Emacs runs fine up till I try using lsp for java development and then it's a bloody nightmare. Currently, I'm being forced to resort to the indignity that is Eclipse as a result of that.

I'm frankly ready for a total reimagining of Emacs even if it means that extension support might be compromised for a while. The last time there was a major divide, we had XEmacs and a lot of the massive improvements that made eventually made it to mainline Emacs so it could only be a good thing for this project long term.