The posts here have your home instance as the URL. Is there a way of creating a link that will use the home instance to resolve? Like how you can use [email protected] for a community. https://lemmy.world/post/8519463 https://sopuli.xyz/post/6065866 https://yiffit.net/post/3862436 are all the same post.
Not natively (that I’m aware of).
A few 3rd party UIs will detect community/user/post links and re-write them to fetch locally.