AOSP. Sad but true.
When first pinephone came out I really believed it’s heading somewhere. It thought that it will be kind of like raspberry Pi (fun, cheap platform to play with) and that we’ll quickly see copycats and it will slowly grow the way Linux on desktop did. AFAIK nothing like this happened. You still can’t get a phone with decent Linux support which for me shows that we’re stuck with android. I think most people that would help Linux phone happen are simply satisfied with LineageOS so there’s no incentive to put as much effort into it as it requires.
We’re almost there…