M1 support is barely usable, at least on m1 air last time I checked idle battery drain was about 7-8% per hour (in macos battery health is still at 96%). Alt DP mode doesn't operate under kde wayland plasma due to inherent incompatability between implementation design and kwin, everything else is surprisingly good, albeit battery was really hard to ignore to fully switch.
Hopefully, they will manage to get it done someday.
That's simply not true. I have been daily driving asahi for 2.5 years or so now on an M2 Max macbook. In it's been one of the most reliable and smooth experiences I have had ever using linux. DP alt made is working fine for me. I'm not sure about battery, I never measured.
I use DP alt mode and also the HDMI port to drive two screens. I use hyprland and runs fine after configuration.
My battery certainly last a few hours. I use it as any other laptop I had before and use it daily on trains. So I cannot at all agree with your POV that it's a desktop. The battery is working without problems.
Hopefully, they will manage to get it done someday.