This might have been the case a couple of years ago, but it is certainly not true any more, if you use AI [even occasionally] to manage some of your default.nix and flake.nix files. I learn by getting AI to edit it (default.nix for example), and then study what it did. It helps.

The quality of the managed / packages software, however, is still a bit subpar compared to Debian and Redhat.