First of all, not all powerful. That is what my first comment was all about. Second, I wouldn’t categorically say no, unlikely, but not impossible. Thirdly, why do so many people feel like debating the finer points of a fictional event with me? You guys are almost as bad as harry potter nerds, except you hate the book you are talking about.
Iirc .webp supports a fallback to PNG compression, so this actually works with some.webp files. I could be completely wrong tho.