I used to be on neovim, and that ecosystem compared to emacs feels like this image: https://i.imgflip.com/2pg2s7.jpg
Some of it is the maintainer shielding us from the breaking changes, but I also think the ecosystem is more slow moving than other editors which helps. The editor is older than most devs after all.
> This is largely a discoverability problem
In my experience it's not a discoverability problem at all. Not even a little bit. My problem with emacs batteries has always been stability between different combinations of packages. I know how to use dired, I know how to install elisp packages, I know how to write emacs lisp myself. The issue with emacs is that it's difficult to create large packages with "batteries" because any additional package added can bork some random, seemingly unrelated package. E.g. back in the day (maybe around ~2020s or a bit before?) I've been using Spacemacs without vim keybinding, and although batteries were included and I was happy, this issue I mentioned above was even bigger. Because I constantly had to deal with installing a package and discovering that it broke some unrelated LSP, programming, or autocomplete package. It gets quite a bit frustrating at some point. Since this LLM madness started, I never really installed anything LLM related to Emacs, and have been using other text editor for LLM related stuff, Emacs for everything else (especially if there is a strong Emacs package, e.g. agda2-mode is incredibly good, almost flawless!)
Again, just my humble two cents. Obvious Emacs is amazing, and in many ways it's still my go-to, I just think that the biggest issue for me has always been randomly broken packages. Maybe I'm a terrible elisp programmer, that's possible! But I've been using emacs everyday for decades, so idk...
Recently I finally start to C-X M-x to do text scaling, the typing is hard even as near 2 decades user of Emacs.