When the music is paused and I disconnect the bluetooth earphones, music starts playing automatically from Mac speakers which are pretty loud. happens frequently as I switch between mac and my phone.
causes a lot of "oops" moment in my office. (My earphone has long press feature to switch between devices)
Its the same case even if I disconnect by clicking on the bluetooth option from menu bar.

When the Music is playing and I disconnect the bluetooth headphones it pauses which is great. I think it is toggling the state but not really looking if the device is actually connected or disconnected.