The most common selling point I hear for Nix is having a list of all the packages you need.
On a traditional Linux distro, I just install things and forget about them. A curated, commented list would certainly be handy when I have a new system.
I've had a new Linux laptop for several weeks and only just realised that I didn't have `man` installed!
Google is my default the vast majority of the time, and this seems to confirm it.
I've been really enjoying paru as a pacman substitute on Arch Linux:
https://github.com/Morganamilo/paru
It allows you to update both normal and AUR packages in one go, which is super convenient. It also shows you PKGBUILD files, so there's still a human audit step for AUR.