There are 3 repositories under animated-wallpaper topic.
Multi-platform parallax wallpaper engine
Managed animated wallpaper based on X11 under Linux(Dynamic Wallpapers for Linux)
Animated Genshin Log in screen theme for SDMM
Multi-platform parallax wallpaper engine
Set GIF images as desktop wallpapers
Set gifs as wallpaper on OS Windows
A customizable, animated wallpaper for Lively Wallpaper and the Komorebi Fork
A Tutorial to show a video on background using a compositor, using minimum requieriments
XAWP - X11 Animated Wallpaper Player - A program that plays animated wallapers in pure X11
Wallpaper of Kyoko Kirigiri's introduction from Danganronpa 1