Not sure how true this is only because I think it can vary wildly.
I have more problems telling Linux to not play audio through my dualsense controller. It’ll just default to using it for the most random things, like my music player or gamecube emulator or whatever. I don’t plug headphones into it, I have a DAC, so not sure if it’s playing there and just needs a headset plugged in it or what. But I think that’s OP’s goal.
Kinda wild all things considered since my controller is plugged in via USB cable
Just did that! Thank you!