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.
Reminds me of VideoRedo. Cool niche little program that lets you slice video files quickly and losslessly. Then the main developer died. The other developer has kept the license server up, but he doesn’t own any of the copyrights. And the program was so niche it doesn’t generate much revenue for the work that has to go into it.