TBH, at this point I think you just described Fedora. I’ve been using it everyday for three years and the total set of customizations I’ve needed to make, outside of my developer stuff, has been...remapping a few keys, really.

The absolute worst, edge-case-est thing I’ve hit: I did have to install a COPR to install (with zero configuration) Bumblebee to be able to completely disable my discrete GPU to save battery life when I was on vacation, and multi-monitor with Bumblebee sucks, so when I got back I uninstalled Bumblebee and Nouveau took back over.