Did you truly read what I said? The only logical way I can frame your comment is that you glanced at what I wrote down and started writing a reply.
To a regular average windows user, ubuntu is incredibly complicated. When you learm how it works and how you’re supposed to use it, it becomes incredibly easy. The “hard” part of ubuntu is the paradigm shift from windows to the linux ecosystem.
Similarly, to an average linux user nixos is “hard” because it does things completely differently from other linux distros. But once you’re used to it, it just makes sense and is easy.
So the comparison is average windows user -> ubuntu vs average linux user -> nixos. Not average user -> ubuntu vs average user -> nixos.
Finally: Nixos documentation is IMO 100x better than ubuntu documentation. Whenever I experience any issue with ubuntu it’s easier to just load up the arch wiki and hope it’s similar than it is to try and find anything specific for ubuntu that isn’t either 10 years out of date, a massive gaping security risk or just plain dumb. The nixos wiki may not be perfect but it has always been sufficient for my needs, and I have to run a decent amount of very niche pieces of software.