I will say windows implementation of HDR - at least the way Chrome handles it within Windows is somewhat of an abomination - so I'm sure Apple's iOS is just as poor!

but sometimes it's not HDRs fault - it's just the segura effect. People with cameras exceeding their capability levels, not understanding what you need to do after you shoot video in LOG.

I mix multi-monitor some-HDR some-SDR in Windows, it's bad.

What's wrong with JPEG 40?

50 times smaller than JPEG 2000.

What would be a better name?

I do not know if JPEG XL is competitive with AVIF for very compressed images, because that is mostly a concern for those who want to host at a minimum cost Web pages with embedded images. I assume that AVIF must be better for that purpose.

On the other hand, AVIF cannot compete with JPEG XL for high-quality photographs, which is something much more important for me, because it is a format suitable for storing my own photographs and it is a format that would make me appreciate positively a Web site that would have beautiful images in this format.

That isn’t my experience. I tried compressing conference proceedings into thumbnails with tiny file size and for this purpose I found that JPEGXL is far better than AVIF

is that a bad thing?