That’s what I see when I open up the federated timeline on two different Mastodon instances and snapshot the top page or so of content. (Well, without the glitch in the screen capture, obviously.) Notably absent:

• hentai
• porn
• bots (I think, maybe there was some bot stuff in Japanese there)
• random news articles
• pictures of cats, rabbits, etc.

Even had there been:

• content settings and blocks work for the first two
• bots are easy to spot and block too
• I actually like random news articles so …
• pictures can be scrolled over easily or settings can be adjusted so you can’t even see them

In short, the only useless thing I’m seeing is the whining about the global feed.