With device-independent ROMs and unlockable bootloaders, this is quite easy to do in a large set of recent phones. See [1] for a detailed list. There are some

With device-independent ROMs and unlockable bootloaders, this is quite easy to do in a large set of recent phones. See [1] for a detailed list. There are some model-specific glitches, though. Some manufacturers haven't implemented Treble HAL properly. So, for the time being, I prefer running pure AOSP on a Pixel. Paradoxically, the best way to use Android but avoid Google is buying a Google phone. [1] https://github.com/phhusson/treble_experimentations/wiki https://github.com/phhusson/treble_experimentations/wiki