You have control over what is suggested by the algo, and can make several different feeds - in addition to just a feed of your follows. Rather than whatever "For You" is doing on Twitter these days.
I don't believe Twitter has the ability to do multiple algorithmically driven feeds but its been a while since I used it. I think Twitter "lists" might be the closest thing to it but thats just different follows. My understanding was that "For You" has gone through a number of changes, most of them for the worst, in the last year or so. Bluesky also has some interesting personal moderation filters - for instance I can subscribe to published block lists, maintained by other users.
Yup. There's the basic chronological feed. There's a Discover and Popular with Friends feed. But, you can create your own feeds and/or subscribe to feeds that other people have created. You can have feeds for a specific topic or subculture. They can be manually curated or algorithmically; the idea is that can you subscribe to your own recommendation algorithm. They can be as simple or as complex as you'd like. Plus, you typically know who created a feed. Let's say you want to hear about AI news. There could be a curated AI, assuming someone cares about to garden it.