Yeah, I would say Gentoo is more accurate for pain, “oh, I forgot to enable JPEG support by default, guess I’ll have to recompile my entire system”. Either way both of them might be slightly painful to setup the first time but they’re a breeze to maintain, back when I was using Funtoo I could copy my world and config files to a new computer and get an almost identical copy of my system running in a day or so when things finished compiling but without any further intervention from my side.