You sound like a sales pitch but my NeoVIM based off of AstroNvim breaks in very random ways across a dozen of servers even under same configuration, I'm about to try Helix instead of the ecosystem with pile of random quality plugins.
It looks promising at first with LSP and all that but I don't know when I had any stable moments.
It's not neovim, but the surrounding plugin architecture I need. I'm using coc.nvim to get autocompletions and documentation and I find that to be increasingly brittle. Also the python3 provider stuff randomly breaks in a venv sometime.
Huh, sorry to hear that. Personally the only annoyance I've had with coc.nvim was when they changed how autocomplete worked and I had to update my keybindings, but that wasn't particularly bad.
In packer, at least, you can pin plug-in versions. I’ve never had the issue you describe - I suspect precisely because I keep my plugin count lean and pin each dependency so it’s always deterministic.
It looks promising at first with LSP and all that but I don't know when I had any stable moments.