@snscaimito maybe helpful: You know how a webpage might look different on your phone than on a laptop screen, even though it's the same website?
It's similar with Fediverse.
Each program (Pixelfed, Mastodon, etc) displays and engages with the same Fediverse content, but they each display the content in ways that make sense for their particular goals and users.
So in this case it will be up to Mastodon to do its best to take whatever content has been posted--the image here--and display it as best it can.
@volkris Right. So I figured but wasn't sure