> Since all packages are treated the same on Linux

This is no longer the case in "immutable" distros such as Bluefin/Aurora, which uses ostree for the "base" distro, while most other user packages are installed with homebrew. Nix and Guix solve it in a very different way. Then there's flatpak and snap.

A lot of poor *BSD advocacy likes to deride Linux for its diversity one moment, then switch to treating it as a monolith when it's convenient. It's a minority of the users for sure, but they naturally make an outsized share of the noise.