I've been on an immutable distro and declaritive distro kick lately.
So the bluefin project, which has so much sugar it a damn cake (in a good way, lots of stuff to get you to a usable running state for a lot of Dev environment and gaming).
I'm digging into SUSE microos more now, mostly to play with elemental (I really want a featureful CI/CD env for my desktop, so containers to full VM and isos is neat to me).
Nix has been super, super useful for packages that I want between OSs, but the alure of getting better configuration with them on full nixos is slowly drawing me in.
Guix on the other hand is my current ideal, I am just super impressed with their full source bootstrapping and really love a lot of the philosophy of the project, but they don't get as much love from the professional crowd (nonacademic, non amateur).