While you should never do it in public, those phones with the virtual 3d sound field speakers are starting to get pretty decent to listen to music on. Still, never listen at higher volumes, cuz that breaks it. But it's pretty awesome for any volume level where it can manage the right level of base for the song.
Specifically what it's doing is making it so each ear only hears the part that is meant for it, and doesn't get the bleed over from the other speaker. Virtual stereo isolation, the Switch 2 also does it in standalone mode. But yeah, of course, that only works for the primary user, anyone in the wrong physical location relative to the speakers won't get the effect. And actually it'll just sound weird to them.