Comment by pwg

> If JPEG XL doesn’t become useful on the web, is it really likely to become popular with camera manufacturers, professional image editing tools, etc?

I suspect that eventually, the browser makers that are reluctant to add JpegXL support will do so, even if reluctantly, and so it will eventually "become useful on the web".

The reason why is Adobe added JpegXL as a compression format for PDF's, and as every browser maker wants their browser to also be a "PDF viewer", this means they must include a JpegXL decoder to be able to support PDF's going forward. If they must have a JpegXL decoder anyway, it is not that difficult to also add it as another supported format for the <img> tag.