Asklemmy

No. CrossOver only runs windows programs inside OSx, not windows itself. It's basically "just" Wine. BootCamp would be an actual dual-boot utility which made actually installing Windows onto x86 macs a bit easier. As far as I know, there's been no great success with installing Windows on M series macs. But it works just fine on x86 based apple computers.

Asahi is the linux project which is doing work to implement support for all the mac-specific hardware features that apple arm silicon has. Such as the GPU, fingerprint sensor, touch pad, etc.

Linux already works on arm in general, it's the core of android, after all. But apple keeps the way all their stuff works together for themselves. So using apple hardware, especially the new M series SOCs, with something other than their intended operating system, has to be figured out from scratch. That's what Asahi is doing, and they are very far along now.

I'm not sure you understand how operating systems work. They are not part of the hardware, they are only software, as long you have something else that also works on that hardware, you can completely delete what came with it, and put in whatever else you want. With x86 macs you can literally turn them into windows computers, it's not windows running inside OSx, just windows.