Nice, that’s what I would expect! Lemmy has an endpoint that makes it easy to resolve links across instances. The OP implied Voyager didn’t do that.

https://join-lemmy.org/lemmy-js-client-docs/v0.19/interfaces/ResolveObject.html

It would be cool if something like this could also be incorporated into the apps

What does Voyager do if you click on a link to another instance? Open in the browser?

Thunder tries to resolve the link to your local instance and opens it directly in the app.