As an expert in image processing:

.png supports pretty extreme compression, while a jpeg can also be lossless. The extensions tell you nothing except which family of algorithms was used to encode/compress/store them.

Webp though, webp is only used for the internet. I mean, you could use it other places, I guess.

I know what you meant (I have one for fish as well), but I chucked because you looked very enthusiastic about it!

The fish function for !! is super useful though