You can now open Settings > Personalization > Desktop Background, and choose any .webp image as the background.

Wallpaper Engine makes static wallpapers look lazy.

This is probably the best tool in the list as it is simplest and gets the job done. Dynamic Theme lets you dynamically change your wallpaper to daily Bing or Windows Spotlight Image. Not just that, ...

The one free wallpaper app that beats all the others.