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.
Lemmy’s official conversions is 124 kB. Next time I’m making a meme, I’ll see how small I can make the size with webp. Should be better when I’m working from my original and not an already compressed jpeg.