I just shot a Process Zero image and compared it to a RAW shot with the built-in camera app. The Halide image is smaller than the ProRAW file from the camera, so that leads me to suspect it’s not a linear DNG (as ProRAW files are Linear DNGs). The Process Zero image looks quite different from the Camera app’s image, so I believe that the RAW is just that. A RAW. I suggest trying the same experiment.