It's called Lively Wallpaper. For most people, Lively Wallpaper might just be good enough to manage your wallpapers, and you might not need the large repository of options available in Wallpaper ...

If you're looking to make your desktop background more dynamic, you should try embedding a video with the open source app Lively Wallpaper.

Lively Wallpaper is a free application that one can install from the Microsoft Store and use to set webpages as their wallpaper. Not just webpages, it also allows users to set other applications ...