Hope the SREs can get back to a quite workday soon.
Looks like you linked to the [email protected] post directly. You can also use the cross-post button on the original post, just next to the star/save icon. That'll reuse the original URL that the original post used, then also auto populate the body with a link directly to the original post, along with quoted markdown of the original body text.
The nice thing about using the same URL for cross-posts is that Limmy-UI will also include hints below the title of posts with names of the communities cross posted to, allowing readers to discover even more cross-posted locations to jump into other threads, even from other instances.
Not sure if the Lemmy community has established a consistent etiquette for linking, as I think currently the URLs have to string match exactly for cross-posts to be highlighted. URL parameters and shorteners can throw a wrench into that feature. Would be nice to support aliasing across common variants, such as YouTube share and time parames.