I have an Xbox One controller, a Dual Shock 4, and various Bluetooth 8bitdo controllers, and all of them seem to work just fine through Proton, as long as the game has gamepad support built in. I don’t have Dark Souls 3 but I’d bet the story would be the same.

another Macon County sufferer?

Honey, put on that party dress?

bist bien alles, sa sa?

yes, Bryan, we all call that “desk”

look up youtube videos about the Retrotink 4k and the OSSC, there’s a whole world of technology designed to fix this exact problem