If you look at the issue tracker, the creator of Webp killed it because of untrue claims there was no interest or advantages over existing formats.

Concerns about the implementation only came up after years of pushback forced google ton reconsider.

> If you look at the issue tracker, the creator of Webp killed it because of untrue claims

I think for most modern software it's difficult to name the creator, but if you had to for webp, it would be hard to argue that it's anyone but Jyrki Alakuijala, who is in fact one of the co-creators of jpegxl and the person backing up the long-term support of the rust jxl-rs implementation, so I'm not even going to ask for a source here because it's just not true.