It's been a week,
NixOS has replaced all my Redhat-derivative installs. Servers, desktop, laptop and dev vm. Still running 1 Debian install for Proxmox. I can see a future where that becomes NixOS + Incus
I'd still recommend an atomic distro for a less technical user. They still haven't figured out config management (e.g. /etc) over there and I didn't know how much I wanted it until I had it.

