I have a 1080p display. When I left click on that image (or any 1080p image), it's smaller than it's original size and cannot be zoomed in. If I view the image properties it shows the following: 1,920px × 1,080px (scaled to 1,523px × 857px). If I save the image from here I'll still get a 1080p image albeit with a completely different filename (a bunch of numbers instead of the original filename).
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When I middle click on it (open in new tab) I get a zoomed out image with the original filename. This image can be zoomed in to actual size by clicking on it.