[gilgad13]

There's a lot of wiggle room in "better", but there are a decent number of distros for which ~95% of the packages are built in a reproducible way, including Debian, Arch, and Yocto: https://reproducible-builds.org/citests/

[aidenn0]

And a lot of those packages use autotools; I don't see the C build system as being particularly hostile to reproducible builds.

[sa1]

Yep, and those distributions function just fine without nix. The point is that that's despite the build system rather than assisted by it.