I don’t know what a .webp file is but I don’t like it. They’re like a filthy prank version of the image/gif you’re looking for. They make you jump through all these hoops to find the original versions of the files that you can actually do anything with.
It’s just a new picture format that is arguably better than jpeg in many scenarios. It has been around for many years. Windows just refuses to do file associations correctly, so people hate it for no reason.
Here is an example of a non crap webp:
Is there a joke I’m missing here?
No, it’s just a random blender render.