stop certain apps using airplay

I’m listening to music on multiple airplay devices all great! However if i accidentally look at a video on twitter or Facebook using my phone, it stops the music replacing it with the audio from a 30 sec video….. completely ruining my listening experience. Please apple fix this, it has been a pain point for YEARS many people have his issue.

I will NEVER want to cast / airplay facebook or twitter…. Please allow a way to completely prevent certain apps from using airplay!!!