Trying to better understand how federation works - from reddthat, I can't see the pine tree and Siberian hogweed posts in the screenshot. Both those users are from instances that we're federated with.
Is it time based? I only joined that community today, and those posts are from days ago.
Edit: some hours later, I can now see those posts posts from this instance 🥳
Yep that seems like the best way to do it at the moment. I'm not sure it will make it into v0.18 but there were some talks on the Lemmy admin matrix about it. Known pain point in the federation at the moment