Honestly, I wouldn't expect much from GPS on the Pinephone (at least the 2GB version): the only maps apps available are extremely bare-bones, little more than tech demos compared to Android software like OSMAnd or Maps.me.
Also, while Anbox has been used in some cases so hackers can say "See, I did it", I don't think Pinephone users are actually going to be using Anbox on an everyday basis. It is too RAM-heavy and too taxing on the Pinephone’s weak processor. People expect to be able to near-instantly switch between apps (e.g. between Signal and Firefox), and that is probably never going to be possible on this iteration of the Pinephone.
With regard to music and Bluetooth, however, already Mobian on the Pinephone gives me the same functionality with my Bluetooth amp as my Android phone. No complaints there.
Also, while Anbox has been used in some cases so hackers can say "See, I did it", I don't think Pinephone users are actually going to be using Anbox on an everyday basis. It is too RAM-heavy and too taxing on the Pinephone’s weak processor. People expect to be able to near-instantly switch between apps (e.g. between Signal and Firefox), and that is probably never going to be possible on this iteration of the Pinephone.
With regard to music and Bluetooth, however, already Mobian on the Pinephone gives me the same functionality with my Bluetooth amp as my Android phone. No complaints there.