ProRAW is just DNG with some additional metadata, and DNG can store actual raw sensor data, but Apple stores the semi-processed image after debayering and multi

ProRAW is just DNG with some additional metadata, and DNG can store actual raw sensor data, but Apple stores the semi-processed image after debayering and multi-exposure stacking yeah. The benefit is that it's 12-bit linear data so you get a decent amount to work with, and their automatic tonemapping is stored as metadata so it can be non-destructively tweaked or disabled in post.