Is there a feature/tool that has a swiping motion capability to simply show two images and swipe over one to reveal the other?
If you create a new file with two images (or more) side by side (a long mage 
) and export these two images with a “slice” tool, either in PS or Affinity Photo and take those two images inside a gallery, then you can achieve a swipe-motion.
If this is what you want.
You may watch: Meisterbetrieb in der Denkmalpflege und Restaurator im Handwerk and scroll up to that big yellow RFRNZN, click or touch it and swipe. This works on desktop as well as you may check. In my case it is seemless but of course may also work with just two images
Kind Regards,
Uwe