To an extent. You'd have to be pretty tech savvy and fairly involved in both ecosystems to actually run your own android builds and stay on top of security. I

To an extent. You'd have to be pretty tech savvy and fairly involved in both ecosystems to actually run your own android builds and stay on top of security. I know of one example of an Android OS which is focused on security and privacy. Check out CopperheadOS [0]. Their technical overview [1] details some of the improvements. * Possible disclaimer? I run CopperheadOS on my old Nexus 5X. [0] https://copperhead.co/android/ https://copperhead.co/android/ [1] https://copperhead.co/android/docs/technical_overview https://copperhead.co/android/docs/technical_overview