I know the area and even though knowing the demographics, those are good as gone. Though chances are they might be at lost and found so you should call.

That might just be a mental thing. Apple streams AAC over Bluetooth, which is actually a very good codec. Maybe his Samsung is streaming lossless, which is possible (idk much about android) but even if that were true, you won’t hear a big difference if any at all. Don’t worry about using iPhone as a source, if you like the EQ of them, you’ll enjoy them