The Asahi team does upstream their work, so eventually this will be possible with the M1 Macs. But it's an uphill battle because it's a reverse engineering effort on undocumented hardware that has a different separation of duties between firmware, hardware, and operating system than other systems that Linux already supports. It's a wonderful project, but if you want timely Linux support, you have to buy from a vendor whose chipset makers more proactively cooperate with Linux kernel developers.

It would be wonderful if Apple shipped the Asahi team a bunch of docs hardware, and commissioned them to complete+productionize support for every single Apple Silicon Mac released up until now plus the upcoming gen. If they did that, maybe in one year support would be great and in two or three years, you coule use any distro you liked and get full support.

But that's not really who Apple is or how they position themselves in the market afaict. This wish is sadly barking up the wrong tree.