When I try to change the volume, it defaults to the call volume , even when I'm doing something media related. The call volume option didn't even exist until recently. Why'd this start happening and how do I fix it? I use a Google Pixel btw.

Thank You!!!

I didn't find the right solution from the Internet.
References
https://forum.xda-developers.com/general/help/sound-buttons-defaulting-to-call-volume-t3665490
Cooling Solution Video