New-post-scroll seems to happen when federated content is loaded?

The unexpected Scroll-Of-New-Content when browsing seems to be happening when a newly loaded community from another instance gets loaded onto the server. I'm not sure if this is a local instance setting or a global Lemmy issue.

Please move or delete if it's not appropriate for bringing up on the local instance, or it's been covered and I missed it. I'm still getting used to how Lemmy federation operates and I'm not familiar with the instance-side options.