@freemo @Jastej There are ctually three different "timelines" you can look at, Jastej.

I marked then on the screencapture below.

"Local" is all the recent posts made in your instance (in this case, ours is QOTO.org), in chronological order. Ypou will see anything any user here posts, as long as they mark it Public.

"Home" would be the next place to consider, this shows your own posts, as well as any posts from users you follow, or any posts one of those users gave a boost to/retweeted.

'Federated" is the last one I would look at, as it's HUGE, everything that the network sees scrolls by there, very fast at times. Posts from any instances that your instance currently is federated with (connected, communicating). In qoto's case, that is all of the fediverse (Federated Universe, the network of independant instance/servers who connect and communicate with each other).

As you click on one of those, you get to see the current listing of posts in that area or feed.

The screenshot is from my laptop, running Mastodon in a Waterfox web browser tab; it might be slightly different on a mobile client, like Tusky or others.