I have the same problem with RAW files(CR3) being too dark. I can load the same file in PhotoShop 2020, Lightroom, Luminar 4, FastStone Image Viewer and it is brighter, the Histogram is normal as compared to how it looked on the camera(Canon EOS R CR3 file). In Affinity the Histogram is scrunched down to the left at least 1.4 stops low. I've had to start using PS to properly process my RAW files, shouldn't have to do this. I've looked thru many threads here, reset everything, installed the latest beta, set my display to sRGB color profile, made sure Affinity was using sRGB... I do not have a newer graphics card or monitor, otherwards I do not have HDR capability. I've read that someone posted to simply raise the exposure level and add a tone curve, etc... why? Should not have to do that, Affinity should be able to read the RAW file just like other programs.