You can still install Nix (package manager) on Atomic, on uBlue, it even comes pre-installed afaik.
And also, there’s Distrobox, which is totally enough if you prefer package managers over Flatpaks.
I personally like the “reliance” on Flatpaks. I think it reduces the fragmentation and makes it easier for devs, but that’s just my opinion. Do as you prefer.
You can still install Nix (package manager) on Atomic, on uBlue, it even comes pre-installed afaik.
And also, there’s Distrobox, which is totally enough if you prefer package managers over Flatpaks.
I personally like the “reliance” on Flatpaks. I think it reduces the fragmentation and makes it easier for devs, but that’s just my opinion. Do as you prefer.