OS to use on Fairphone 6 - Lemmy.World

Hey all, I’ve recently bought a Fairphone 6 and deciding what OS to use. I installed e/ OS and found every apps works fine except a step tracking app StepUp - which I use for work. The wheel just spins when I open this app. Does anyone know how I might fix this issue? Otherwise which OS would you recommend which also has some of the same privacy as e/ OS? Is there anything you can add to the stock OS to improve privacy? Cheers!