Windows 11 backgrounds are finally joining the modern era

Stop fighting with your PC just to set a wallpaper; Windows 11 is finally embracing WebP files natively.

Microsoft tests a better image format for Windows 11 backgrounds

Microsoft is also thought to be testing video backgrounds, but that's still missing from the latest preview build.
Windows Latest

Microsoft lets you use .webp images as Windows 11 desktop background, no signs of Video wallpaper yet

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

Windows 11 KB5074157 Dev Update Brings Modern Account Settings UI & WebP Wallpaper Support

There’s also a small but welcome personalization update. Windows 11 now supports .webp images as desktop backgrounds. You can ...
XDA Developers on MSN

My Windows desktop used to be boring until I found these 7 tools

Windows 11 PCs doesn't give you a lot of customizations, but these apps change the game and let you make your PC truly your own.
Windows Report

Windows 11 KB5074157 Adds Modern Account Settings UI and Support for WebP Wallpaper

Windows 11 KB5074157 rolls out to the Beta Channel with modern account UI, faster Copilot prompts, and support for WebP ...