No, not really. If JPEG XL had a time machine and made itself deployed on the Web before WebP, I'm pretty sure nobody would want WebP in. It'd be an objectively

No, not really. If JPEG XL had a time machine and made itself deployed on the Web before WebP, I'm pretty sure nobody would want WebP in. It'd be an objectively stupid idea to adopt WebP having JXL available, and I'm pretty sure even WebP authors would agree with that. The Web is not supposed to be a Katamari Damacy of codecs. It doesn't need multiple redundant or worse ways to do the same thing. There's a high cost of adopting a new format Web-wide, so it's rational to do it rarely and only when benefits outweigh the costs.