So you just arrived here from twitter and it's quiet. Real quiet. That's because there's no algorithm here designed to drive engagement(which equals profit).
Here, you are the algorithm. It's up to you to find and follow people that are interesting to you. You can also see who they follow and who else follows them, as you build it up, it gets more interesting.
Also, if you find people you don't like or entire instances you don't like, you can mute or block them. You are in control.