I would argue it’s the opposite of being good with beginners. Having used many distros for years, with most of my time spent in Arch and NixOS, nix basically follows zero Linux conventions and requires you to learn a new language, learn the conventions of the nix community and ecosystem (channels vs flakes, home manager, etc)
I primarily use nix but it’s specifically because I can write nix files and use them anywhere, so I’m a hobbyist, not a beginner
Mint is good for total beginners. Arch is good for those that really want to learn how Linux works. Nix is for those that want a reproducible system, not beginners
Ah yes the old “Join our Discord” rather than having anything beneficial being indexed