There is the Volla Quintus which can dual Boot its own Volla OS, but also Ubuntu Touch.

There is the Pine Phone which supports every major Linux mobile OS.

There is the FuriPhone FLX1 which runs on an Android kernel.

There is also the Librem 5 which runs PureOS.

I’m sure other people know way more than me, especially on the linuxphone sub.

Is proton completely unusable on Linux?

German brand Volla has phones with Ubuntu Touch. Even allows dual boot with their own degoogled Android OS. Might be worth checking out.

You beat me by a year! What pushed you over the edge?

Getting rid of YouTube is like freeing up two hours of my daily schedule. And yeah it’s absolutely eye opening seeing all those services one subscribes to without even giving it a second thought.