I'm trying to touch-up my Drone photos, but they look horrible in Affinity Photo compared to Windows Preview or even Gimp
Here, the original file has a very very smooth gradient coming from that lamp. But as soon as I open the file in Affinity Photo, the glow from the lamp turns in to blocky color bands.. It's almost like it tries to convert it to web-only colors or something because the quality is horrible. (below, you will probably see some banding in your web-browser, it's actually WORSE in Affinity Photo)
Download this image and view it locally, to see it without banding. If you still see banding when you open it locally, sorry your monitor sucks