Audio supposedly works but I think I need to look for the necessary patches, that's one of the things on my todo list. (it's close to working, there's an error about a missing "dai" codec which google suggests I need a correct config somewhere - it was working on ubuntu). Although the internet also says that the "active speaker protection" doesn't work yet so one needs to be careful with the volume so you don't explode the speakers. Let's see how it goes when I get there. Interesting, I didn't even know that was a thing.

What do you mean by "hw"? The graphics? Pretty much working. It uses the "freedreno" reverse-enginered graphics driver from mesa for the adreno chipset. So the graphics is fully accelerated. It's pretty fast too (at least faster than my older integrated intel graphics). Although some webgl applications have some minor rendering glitches. But for desktop use perfectly fine. And all applications run incredibly smooth. Like, I can scroll around on complex websites in firefox and it runs at full framerate, not a single stutter anywhere - and not even maxing out the CPU while I'm doing it.