I don’t know if it’s like this for everyone but the linked post has 2 images but when I view it in Voyager it only shows the first image and there’s no indication that a second image exists.
https://lemmy.world/post/2323338
Edit - Still trying to figure out how to link it so that it opens in voyager
I think the bang only works for communities: [email protected]. Voyager can also handle http links to communities (if the link is in a comment or post body, not a post link): https://lemmy.world/c/obviousplant.
Posts and comments are known feature requests that are non-trivial to implement.