Wallpaper Engine V1.0.981 Repack Link

Automatically pauses when playing games or using full-screen apps to save GPU/CPU resources Customization:

The “RePack” part mattered as much as the version number. The original v1.0.981 required Steam running in the background even for offline mode. The repack, however, emulated the Steam API locally, allowing artists to run the engine on isolated studio computers, old laptops, and even Windows 10 LTSC systems without gaming services. Wallpaper Engine v1.0.981 RePack

A highly-rated, free, and open-source alternative available on the Microsoft Store. Sucrose Wallpaper Engine Automatically pauses when playing games or using full-screen