Could be. I’m not as familiar with that format – a major strength of png is that anything can open and view it properly. It’s been a standard for decades, so it has universal compatibility.

e: I’m not going to look into that specific format (I stopped caring about the inner workings of file formats like 15 years ago when I stopped getting paid to care), but I think I could bet you that webp is a document hierarchy wrapper on png, jpg, gif, mpeg, etc, ad inf.

I had to exit this comment and look again because I couldn’t remember if you’d said webm or webx or webp or whatever. The last I knew, that’s not a file format but a codepage (nowadays, that’s usually a cheap wrapper over code they found and repackaged).

That’s massively simplified, but if you’re asking that in this thread, I’m worried people are being sold a difference that doesn’t exist.