I've used the PinePhone, it was a fun geeky object to have. Most of my issues where related to the screen-size/format which most apps don't handle well. Yes, apt/yay install does work... but you end up struggling to use it.

PostmarketOS with sxmo was the most usable.

Compared to GrapheneOS or /e/os, it's day and night. You can't compare apples and VHS tapes.