This is de facto no recommendations and no amplification. Which I agree with; IMO even algorithmic recommendation is an implicit endorsement of "we want you to see this content you didn't specifically ask to see", at which point that's an editorial decision that people should be held liable for.

Correct me if I'm wrong, but if you have only 15 posts that can be viewed at a time, doesn't that mean those 15 posts are getting amplified over the others? Maybe not since all posts theoretically would be temporarily visible in those 15 posts at some point?

Won't posts that encourage quick responses (clickbait, memes, controversial posts, etc) be bumped up much more frequently, thus making sure they are amplified more than other postings (while burying other posts)? Sure this might not be much of a problem on a site where you only are following a small number of people, but I find it hard to imagine it could translate to a larger site that inherently isn't just you following a few friends (i.e. Reddit).

It is not a full and perfect proposition.

Ye well one friend could spam alot and almost always show up in his two slots in the feed. But aslong as you have a finit number of annoying friends you could deal with that by maybe muting them from the feed or just live with it. It might be a problem since many Facebook users have 100s of "friends", but I see that as an user error. You could have a "favorite" bar with friends you easily could click on and see what they have posted. Ie. actively looking instead of a feed if the feed gets too spammy by 100s of friends.

Having absolutely equal and fair exposure would need some kind of normalized random selection of posts since last login but that would probably just get messy and confusing.

"Won't posts that encourage quick responses (clickbait, memes, controversial posts, etc) be bumped up much more frequently, thus making sure they are amplified more than other postings (while burying other posts)?"

Ye but atleast its deterministic, your friends find it interesting enough to talk about and the conversation can continue till it is done instead of disapearing in the feed. There could be a big cross to click to mute it.

I have no hope of having an algorithm decide what I want to see. That is my main point.

I like the way Twitter is now, if you configure your settings correctly. You see all the top-level Tweets made by the users you follow. In chronological order. And nothing else. Of course, this includes retweets. If you don't want to see retweets from one of the users you follow, you can specifically disable retweets from that user.