My biggest pain point right now with Bluetooth and my phone is that it's *all* media going through the paired device. I want to be able to pin just my music app

My biggest pain point right now with Bluetooth and my phone is that it's *all* media going through the paired device. I want to be able to pin just my music app audio to go out a speaker and still be able to use my phone speaker for all other apps but that's not possible.