To be honest, the default themes for many DE's are actually pretty tasteful. Just vanilla Arch isn't bad if you don't mind running the pacman update command. I honestly recommend Nobara for people who want stability and point/click updates.

Endeavor is more like hobbyist UI purist, and not that well optimized. Arch is insanely optimized, as well as Nobara. I would recommend Ubuntu but, Snaps. Pop would be great if their major rebase was further along, so options are pretty limited. We're in a weird transition right now as far as the major distros and overall performance metrics.