I believe you can use DS4Windows to get compatibility with the DualSense
Viewing post in Mysteries Under Lake Ophelia comments
Probably, but unfortunately that replaces the actual driver for it and breaks PnP functionality for the controller otherwise, and it works fine on Steam as is so I'd rather not break that functionality. Thanks for the suggestion though!
Oddly enough, Lake Ophelia does actually recognize the Dualsense being plugged in, but all it does is permanently put me into the "casting" pose