@nk52sX3pY7 you only see posts from people on your own instance on the Local Timeline, or people that you follow on Home.

You can click Federated Timeline to see posts from people that *anyone* on your instance follows, or posts from any instance yours relays with. For example the social.privacytools.io instance is a member of https://relay.fediverse.us/ and https://relay.social.seattle.wa.us/ so it will see posts from any instances that are also members!