> I have terrible news for you about how the official firmware works.
I've seen some e-waste ODM (Tinno) code and their freestyle philosophy on modifying the kernel code.. however they at least have to fix this so that basic functionality works as there's QA and serious bugs will affect certification and they'd not get paid. But here if you report a bug to PostmarketOS (but well, even LineageOS), nothing will happen unless you fix it (and if you submit a patch, it will sit there forever, welcome to FOSS).
> My general understanding of the Android ecosystem is that they do write drivers, and you don't want those drivers
What's wrong with pixel drivers for instance? I'm of course not talking about those written by e-waste ODMs like Tinno who can't even release GPL kernel sources properly.