I am having an issue. When i export my scenes / images as png all the lines are jagged / distorted but when i take a screenshot it looks significantly better. Would love to get an idea of why this is happening. I have attached a screenshot.
This is the aliasing of diagonal lines on your screen. You have 2 settings for antialiasing - one for screen display and one for image export. In SketchUp Pro, you have an options button to access when you export a png - check if you have the same with SketchUp shop. Once you have set antialiasing for your export (if possible), as there is no adjustability to that, to improve the look, simply increase the export resolution (I often use 8k).
Have you tried exporting at a larger pixel image size (at the same aspect ratio)?