I made a partition for Nix on mine so I have all the tools I need while not relying on Jolla to package things (the installable package list is quite barren). My audio works from the speakers, but the patches to make the headphone jack (something you Fairphone users no longer know of :P) work won’t come til the next release. For banks, I just use cash or log into the website on my laptop if required—while I will refuse goods/services that require an apps to the fullest extent possible (couldn’t get around TicketMaster which was a real blood-boiler beyond just the “phone required” aspect).

Yes, I think that just trying to use services that don't require special mobile apps can get you a long way. It is sometimes difficult, but now I'm beginning to move more in this direction :)