A first approach, with little to no external resources could be:
- Take screenshot
- Compute hash of said screenshot
- Wait some time (a few ms)
- Take another screenshot
- Compute hash again and compare to the previous one. If they differ, there is at least some kind of change or animation in the screen.
This isn’t 100% reliable, but it doesn’t require much effort.
Another possible approach, if you specifically want a gif, could be to download the entire page and see in the page itself (the html) if there’s any references to “.gif”
I wouldn’t recommend this option either, since the animation might just be some fancy CSS tricks
If you want to have a more reliable way of telling if there’s some kind of video, you need more advanced computer vision techniques (not necessarily machine learning based) that I wouldn’t even try to code directly in UIPath.