I’d go basic debian . Install flatpak and flathub to get any packages that are too far out of date or might get so. Any derivative or ubuntu derivative just sees like unnecessary extra dependencies to me.
Debian gives i think a wider choice of desktop environment than any of the derivatives on install, but I think they’re all much of a muchness really. Most of the DEs have the “Click something, window opens” feature.
Laptops run off batteries a lot of the time - so compromising outright performance - full instruction set - for battery life will be attractive for many laptop users who use it on the go.
I’m no apple fanatic, I’d never get one, but I do see the appeal of those apple laptops.
I’m sure x86 could get closer on the performance to battery tradeoff if they wanted to; but I bet they’d be looking to price up at the apple level for that.