I know that my personal case is only one data point, but I currently manage one EndeavourOS system and one Arch Linux system and except for hardware-specific issues and things I only tried to do in one machine and not the other, I have only ever had identical problems in both. And few of those, too. EndeavourOS… endeavours… (sorry) to be as faithful to the original Arch installation process as possible, except automated and optionally also installing a graphical environment.