Edit: noticed you DID post there, I thought you didn't because thunder didn't list any cross-posts.
If you re-use the same image link in any additonal posts, or use the cross-post feature, lemmy will link your posts up so people can navigate across their comment sections in apps that support it, like thunder.
If you want, you can still edit one post to use the image link from the other.
I can tell it's not the US because of the textured paths for the sight impaired. We have the dotted ones on street corners and stuff but I've never seen the straight ones anywhere. (I'm tempted to call it a braille path but I don't think that's it lol.)