Interesting! I didn’t know that, thanks for responding

You can. Google pixel updates are just a reboot. Sadly many OEMs don’t do A/B updates, like samsung, so your phone can’t be used while updating the system partition

The main problem with NixOS right now is, in my opinion, the scattered documentation. You often can’t understand a topic without cross-referencing the manual, nixos wiki, nixos search (and nixpkgs and some scattered personal blogs if you’re really unlucky). But if you stick around and adapt to this it’s very easy to do stuff that takes a lot of effort on other distros with a few lines in your config.