Comment by pzmarzly

I'm using Universal Blue now (Aurora, i.e. KDE flavour) and I'm very happy with it. With its large amount of pre-installed packages and drivers (including proprietary ones), I still didn't need to install any custom package (rpm-ostree) or otherwise modify the OS config (except for turning off SELinux in /etc/sysconfig/selinux). It's the most pragmatic distro I've used so far.

SaveDesktop[0] (saves flatpak apps and DE configs) and mise-en-place[1] (declarative shell environment manager) are making my installation backupable and quite reproducible (not to NixOS standards though).

For software that's not in flatpak, docker or mise, toolbox[2] and distrobox[3] are available for the rescue. Both work really well (toolbox seems better for CLIs, distrobox for GUIs), but all atomicity/declarativity is lost.

[0] https://github.com/vikdevelop/SaveDesktop

[1] https://mise.jdx.dev/

[2] https://github.com/containers/toolbox

[3] https://github.com/89luca89/distrobox