What's fascinating to me as a web dev is that (unless I'm mistaken), if I store all my images as JPEG-XL, I won't need to create thumbnails or resized images anymore... I think I can literally just hold onto the originals and just truncate the image binary stream at whatever resolution is required.

I'm not sure how this would interact with "right-click to save image" though... what resolution would it be at that point?