Have you looked into Asahi Linux?

Yes, but it's still miles away from being complete and I'm not sure if it will land in the next year

I also have an m1 under linux and I regret choosing it.

I'm also curious about this for the 13th gen one. My hope is that it shares the 12th gen's excellent Linux compatibility (the only thing that doesn't work with that one is that you need to turn off the light sensor for the brightness keys to function properly), and that the Windows battery life improvements carry over to Linux.

(The Ryzen one isn't out yet, so nobody will have battery life answers on that.)

They're using Intel radios, which is good. Intel and AMD are both good on CPU and GPU, the screen resolution is icky if you want to run X11, so you'll want wayland, and that is a can of worms. I'd say my KDE experience is great, but others complain more.

They officially support these Linux https://frame.work/linux and I've been using it for 1.5 years - it's super stable.

I get pretty great battery life on my 11th gen Intel Framework under Fedora, and it's apparently way better on the 13th gen. Also stoked for the Ryzen version later this year.

Thanks, how well does it handle an external 4k display with the intel graphics btw?

As others noted, we provide support for Ubuntu LTS and Fedora, and we have setup guides published for those along with Mint and Fedora. At this point, there is mature support for the hardware we are shipping, including the new 13th Gen Intel Core processors.