

After reading the comment by @zedgeist@lemmy.zip below, I think I understand where you are coming from. In the web version of this post, it is
<a href="https://i.redd.it/%E2%80%A6" ><img src="https://media.fedinsfw.app/file/%E2%80%A6"></a>
so you see an image even though it is a link post, and the server cached a version of the image. Whatever client you are using doesn’t understand that the link is to an image, and doesn’t serve you the cached version either.
As uploader, I have no option to tell the server that the link is to an image, but it figures that out itself. I’d like to tell the server to drop the reddit link entirely, but ATM, that is not possible either. One day this will be ironed out, but right now, I’d suggest that you skip reddit links, or use a better client. I think piefed has a PWA option, and there was some Voyager mentioned below.

I see. Well, AFAIK you can watch the original image when it’s in the
srcin animg, so you could fix this with a Grease/Tamper/*Monkey script, or use something like https://github.com/nopperl/load-reddit-images-directly, which changes some HTTP headers so that the reddit can’t redirect the request.