This can happen on sites where you have an adblocker removing modal overlays elements but there are still an invisible part or other CSS means limiting scrolling.
Some sites block scrolling with CSS (usually on body): overflow: hidden;
For me they blurred the images because of my ad blocker. Or probably because I have cookies blocked.
the images loaded in for me, I think it's lazy loading
lazy internet can't be bothered to deliver the images...