I have Bluetooth problems on Redmi Note 8 pro - when I'm listening to music and taking incoming call after call ended I have to turn headphones off and back on to be able to listen a music again. If I don't do it, it looks that's the music is playing but without a sound.
I made it possible on my Nexus 5 with MIUI 5 by installing Elementalx kernel. Love this future! It works great on Nexus 5! And Exposed Framework also works with this kernel on Nexus 5 with MIUI.