@NorthernInvader Webp is a stain to be honest. For the most part if you change the extension for images in webp to .jpg/.jpeg it'll just appear as a normal jpeg. Not sure about gifs, hell I didn't even know until now that it did both animated and non animated images.
@AskTheDevil @NorthernInvader It's so strange though, skype (last time I tried sending webps) can't display them at all (might have been discord. I can't recall which program it was, one of the two.) But after changing it to .jpg it worked flawlessly.
So I assumed that it probably did as you said and has encoding information similar enough to jpg that it worked as expected. Interesting that you mention it is similar to png and gif though.