Moments you don't want to miss can disappear instantly. When you want to enjoy all inspiring scenes, the 8K video snap is a whole new way to capture still photography. 8K video turns every frame into a crisp still that you can pinch-to-zoom for once-in-a-lifetime shots.
The unique camera capabilities of the Galaxy S20 series allow you to capture a single picture of an 8K video as a high-quality photo. If you touch the Snap icon whilst an 8K video is playing, it will be saved as a picture just like screen capture.
However, it is quite different from a normal screen capture. Screen captures usually degrade the image quality, but this feature provides easy extraction for high resolution just like an actual shot.