The more I use ChatGPT and the like, the more I realize "the old ways" is usually just faster and easier. At best, I might use it to point me in the right direction instead. Which is very helpful, but it's nowhere near good enough to be a replacement for most of its applications.
I know the article is about Gemini but people are realizing that AI isn't replacing anything any time soon way faster than the people making it.
Basically smaller file sizes than JPEG at the same quality and it also automatically loads a lower quality version of the image before it loads a higher quality version instead of loading it pixel by pixel like an image would normally load. Google refuses to implement this tech into Chrome because they have their own avif format, which isn't bad but significantly outclassed by JPEG-XL in nearly every conceivable metric. Mozilla also isn't putting JPEG-XL into Firefox for whatever reason. If you want more detail, here's an eight minute video about it.