I came from a ~10 year old phone so FF5 was a big upgrade. Battery lasts the work day (may go from 80% to ~50% or ~30% mostly playing bluetooth audio for like 4 hours on and off). Fairphone uses some industrial chip instead of a mobile one - so it uses more power but they say it can get much longer updates than other phones. I usually have the screen set to 60Hz to save power, but a cheeky 120Hz session feels great. One bug is I can’t charge it in power save mode.

I got standard Android but replaced the proprietary store/apps (updates still requires Google Pain Store). I planned to try out an Android fork later but that’s was not as easy as I had naively thought. [Requires an SDK binary that come with non-free license and 3rd party guides to build it myself were rather dead].

I not aware it could run non-android OS - do you have exp installing a Linux phone OS? How did you find that? I’ll have to look into FF5 compatibility.

Have you considered Fairphone 5? Might not compare to modern phones but it’s very repairable.