One of my admin friends said it’s not really made with desktop users in mind but more for people who need to set up (lots of) computers / servers quite often (= admins). If you’re not planning on distro hopping or reinstalling your system all the time it doesn’t really do anything for you that any other distro plus a good backup strategy already does. Plus you can use the Nix package manager without installing NixOS on the distro you’re on right now, if you wanna check it out.