I'm interested in this as well. I don't have a personal M* MacBook to test it myself(Writing this on a M1 Pro MacBook Pro provided by work, but I'm obviously not trying to boot Asahi Linux on a work machine). I'm thinking about getting a laptop for personal use, and I'd love for a M1 machine if it runs Linux decently. 1. It needs to be able to sleep/resume like a Mac (shut the lid, and it goes to sleep without sucking the battery, and open the lid, it should wake up within a second or two allowing me to continue what I was doing before sleep), and 2. Needs to last at least 8 hours on battery. The Mac lasts more than 14 hours for my use (very light). Wifi needs to work reliably.
I don't care if the GPU lays there unused, I don't care if bluetooth doesn't work.
Power management should work for the most part. Sleeping and hibernation doesn't work yet but it should definitely scale to your load. All the usual things like setting the performance governor should work. See the driver discussion here: https://lore.kernel.org/linux-pm/20220504075153.185208-1-mar...
If you have issues with this please report it to marcan (or somewhere on IRC in the project or whatever).
I don't care if the GPU lays there unused, I don't care if bluetooth doesn't work.
I hope Asahi Linux gets there someday soon.