Hi. I know the most privacy-oriented (and best-working) phone OS is GrapheneOS, but I was wondering about other, less well-known ones, such as VollaOS (modified Android), Sailfish OS or Ubuntu Touch. Are they private? Do they work? Can I run Android applications on them (VollaOS and SailfishOS) without too much effort? I like using Linux, but I rely on many Android apps, such as navigation, mobile banking, the Garmin app, and many others. Do you have any experience with these operating systems?
which phone you got? is sailfish still xperia only?
List of linux phones OS: https://linmob.net/resources/#smartphones Sailfish os suported devices https://docs.sailfishos.org/Support/Supported_Devices/
No, I think they support others too. However I have the Jolla C2:
https://commerce.jolla.com/products/jolla-community-phone