Power usage doesn’t scale linearly, at all. Mobile Ryzens are very competitive with the M1 watt for watt (trading blows with Ryzen winning sometimes). Seems you’ve fallen for Apple marketing again.
This is the inconvenient truth of these discussions. If anything, Apple is under playing the bang for the buck and performance per watt of these machines.
All the Intel machines I've looked into have fans and still manage to be 30-50% slower.
I’m fact I use an M1 iPad right now. It’s great. For browsing Facebook and video calls and doing remote work, it’s perfect. And for serious workloads, those go straight to my desktop workstation (AMD). Best of both worlds.