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?
I am trying to reduce my dependency on phones/android since years and try to use Linux (NixOS) for everything and I would say I’ve been quite successfully. The only application that is holding me back from abandoning phones entirely at this point is Signal, because it requires a primary device and only the official mobile apps are currently suited for this task. Flare looks promising, and the PR has already been merged, but it is not enabled by default due to other issues. For online banking, my bank supports SmartTAN that requires a scanner, but this allows me to do everything via a browser.