Not... in a way I'd use as a distribution/release maintainer. Probably as an administrator [of my LAN]
(sorry not meant to offend, long time linux day-to-day user here, but it was just ironic for me to point out fragmentation of fragmentation ^^)
More an exercise in curiosity than anything
Flatpak (or Snap, ew) probably deals with it fine today, Steam's there
Nix is neat, and I don't think I've used it enough to be too critical - but in some ways it feels like 'extra steps'
I wanted to make a 'reproducible' installation (ala kickstart, not strictly binary)... but it felt very much like distribution work; declaring dependencies and the like
I plan to spend more time with it, I see a lot of merit
The amount of control is great, but the docs could use some work. For my simple goals (install Sway, Ansible, some other things) it was a broadsword when I need a butter knife