I have a Samsung Galaxy book with Manjaro and wayland. The touchpad works. Multi touch, gestures, and everything. But it isn't great. I blame the hardware for this. It's a generic cheap synaptic thing in a cheap laptop. So, my expectations were kind of low for this.

On the software front, there is basically no way to configure this thing in a sane way either. At least not in Gnome. So, the software has lots of room to be fixed. Some kind of simple UI to dial in responsiveness and configure things like gestures would be nice. But you can't make mediocre hardware great with just software. I also had some issues with Firefox until I figured out that I needed to fiddle with some settings to make it not scroll super fast. After that it was usable. But I bought a wireless mouse because it is just not a great experience using it for extended periods of time.

I actually connected my Apple magic keyboard and trackpad 2 at some point and that worked great. Still no way to configure the trackpad properly but it got recognized and it felt as responsive and usable as I'm used to on a mac. It's great on Linux as well. If Asahi keeps on improving, I might install it on a mac. I use the M1 macbook pro for work and it's a great piece of hardware. None of the PC vendors come even close to how good that is.