I really don't understand the obsession with Apple laptop hardware. There are many alternatives that objective better: more ergonomic, less reflective screens, better keyboards, cheaper, lighter.
I have been using x86 laptops in the past (terrible clickpad and speakers like a cheap handheld radio from '90 but whatever, I ignored the overpriced Intel Macs). But M2 is something which I couldn't ignore anymore, bought and I am very happy. They are awesome (unless you buy lowest spec 8GB RAM version)! My only complaint is the soldered SSD and apple pricing on SSD. Having a slot there would make so much sense...
I don't believe it. My M2 Max maxes at around 40W. x86 just isn't that power efficient. You can idle with only one/few economy core turned on running at the lowest power state for longer battery life but x86 is simply very hungry when running high loads and it can't be magically improved. The arch is just obsolete and legacy.