If you are willing to take total control of your mobile environment, Android can give you very good privacy. Arguably better than Apple.
Simply buy a Pixel (or any other device that supports AOSP). Build your own AOSP image (which is quite easy). And you are ready to go. Use applications from F-Droid only.
Admittedly it's not as straightforward as running your favorite Linux distro, and there are some caveats, but it's quite close.