Yes it takes quite a lot of effort to get there. Vim motions take weeks to become your second nature, and then you'll probably spend 20-50hours finding plugins and configuring Neovim until you reach the Vimvarna. That's a ton of effort, but like I explained in the other post, I found it being both fun and making me a better programmer as an unintended side effect.

Breakages are rare though especially if you use a plugin manager that shows you commits from your current versions of plugins (e.g. lazy.nvim [1]) so that you can see if you need to update anything.

[1] An example of lazy.nvim plugin update experience: https://user-images.githubusercontent.com/292349/208301737-6...