Another anecdote: I am a big nvim user and set everything up three years ago and basically haven't touched it since. At this point I'm a bit afraid I won't be able to fix it if something breaks lol.

I do think the culture of tweaking constantly without ever doing real work exists, but it's far less common than it seems online. People who make posts about their neovim configs all the time are certainly more likely to be in this camp than people not posting at all.