What are the critical innovations needed to get the OS usable for a non-tech person only interested in Phonecalls, SMS, and pictures?
Also most people don't like carrying a compass and road atlas like I do so the turn by turn navigation needs to work (KDE marble will stick you on a slippy map and route for you but I don't think it does real time navigation right now.)
As far as pictures....the Camera on the OG Pinephone is not great, I would not use it to take serious pictures (or I am bad at taking pictures, which may also be true!). The Pinephone Pro has a much better Camera, but so far, it does not work in software.