The only usable OS for the PinePhone had been PostmarketOS with sxmo-de-sway. I had to do lots of tasks using the terminal, but it allowed me to have a stable connection and Wifi hotspot. Phosh and Plasma would disconnect or crash often.
I also got lots of shifty looks using my phone on the train as if I were a hacker terrorist or something.
It's been much smoother using LineageOS on a very old OnePlus One than the Pinephone, but I still keep it around to try out new OS updates.