It's usable if you can live with some small annoying inconveniences last I tried. I can't remember if there were more inconveniences but what bugged me the most was that the touchpad was too sensitive compared to MacOS, it seemed to register accidental touches on the edges more and accidental taps were easier. I tried figuring out if this is fixable with libinput or hwdb but eventually gave up. Also the shortcuts with Command key are way more convenient than the ctrl ones but this probably is configurable somehow. Some Java programs had scaling issues but that can be configured to work properly. Battery life was a bit worse I think, this is with the GPU drivers and no video playback, just regular browsing. Oh and external monitor support isn't there, I do use this sometimes on MacOS.
The installation process sets it up to you. You'd have to do more work to not have dual-boot (unless there was a setting in the installer that I forgot).
I'm not parent, but from my quick foray into (Fedora) Asahi on a Macbook Air M2, I at least noticed USB-C connection to my monitor and USB router behind it not working at all. There's something Mac-specific going on there, because from my x86-based linux laptop, this usually works fine.
