If you've installed additional ones sure; but even if some new Win11 version started including it with the preinstalled set, they probably wouldn't even give it to 10, let alone 7.

"Currently, only decoding is supported, but that allows to e.g., see the files
in Windows PhotoViewer."

That means you CANNOT SAVE WEBP WITH WIC USING THAT PROJECT, xaioyao.

I swear this guy must have deep burning hatred for using a decent translator.