Having tried NixOS, I gotta say the ability to quickly restore everything from a single config (its main premise) is overrated when it comes to home systems. Invaluable for production environments, though.
The rest can be done on any other Linux, and it would probably be preferred by most.
Strong disagree on my part.
Immutable distros work differently from traditional ones, for which most guides and manuals were written. This is somewhat painful even for those coming from other distros, and it’s gonna be a nightmare for those coming from another OS. They didn’t even familiarize themselves with Linux yet, and people want them to run flatpaks, distroboxes and work with rpm-ostree or its alternatives. It’s like learning to fly a plane by saving a Boeing-737 on a crash course.
Immutable options are not for newbie users, at least not in the foreseeable future.