IMO most of linux issues come from "my distro ancient package registry does not have package X, let me google magic commands I need to run to installed version I need"

If I have issue with nixos, its 99 out of 100 times going to be package I pulled either from nixpkgs-unstable or 3d party flake.

NixOS make it less of a problem because I can alwasy switch to previous generation and build all of my hosts before switching any of them.

Some distros are worse then others though. Ubuntu (used to?) for some reasons loved switching nvidia drivers OSS version that does not work every update or break keyboard layout switcher. I never had such issues with NixOS, but with NixOS I have "kernel updated, reboot required" issue that I had setup alert for[1].

[1]: Only issue on a host that has nvidia card because nvidia being nvidia.