I didn't intend to create another opportunity for jpeg-xl partisanship, but well, it happened.
> Yes. One can barely argue AVIF is better than JPEG XL on the Web.
One can very persuasively argue that AVIF is better on the web; for 99,999% cases used in the wild it will be better. Yes, some marginal cases are better handled by another formats, it is nothing unheard of.
> For authoring, JPEG XL win hands down.
For authoring, .psd, .afphoto or whatever is the native format of the used app will be used.