Exporting on adobe results in useless quality images/videos

Hey guys, so on my laptop I seem to be having a problem with exporting images and videos I have used adobe lightroom classic, premiere pro and davinci resolve. I have set the export quality to the highest possible and the export quality is really bad. But before I export it when editing it is really good. What could the problem be? I edited the same videos/photos on my phone and they didn’t reduce in quality.

what are your export settings (bitrate, resolution, colour space etc) and how does it compare the file you get after exporting?