algorithmic feed

 algorithmic feed  (AKA algorithm-driven feed or just algorithm feed ) is a more correct term for the "algorithmic timeline" lie, and an increasingly common feature on social media silos such as Instagram, Facebook, and Twitter, where they show only some posts from your followings, as well as show some posts only hours or days after they were posted, thus not in chronological order.

How to turn off
So far only Twitter has an option for turning off the algorithmic feed and switching back to a chronological feed. "you can just toggle off the 'Show me the best tweets' option in the settings menu if you don't want to see it at all."

More at: https://www.makeuseof.com/tag/how-and-why-to-disable-algorithmic-feeds-on-twitter-instagram-and-facebook/

One can also use a Twitter search query for  and click the "Latest" tab to get a non-algorithmic Twitter timeline somewhat similar to their original incarnation.

2018-09-17 The Verge reported that Twitter will soon let you switch between chronological and ranked feeds and included a link to a viral Tweet about muting a variety of terms to be able to manually modify one's Twitter timeline. Some of these terms include:
 * suggest_recap
 * suggest_who_to_follow
 * suggest_activity
 * suggest_activity_tweet
 * suggest_recycled_tweet_inline
 * suggest_recycled_tweet
 * suggest_grouped_tweet_hashtag

Silo Examples
(screenshots needed)

Facebook
Facebook "has had some form of an algorithmic News Feed since 2011."

See Facebook Algorithm

Twitter
Twitter started switching to an algorithmic feed in 2016 February.
 * 2015-06-29 Buzzfeed: An Algorithmic Feed May Be Twitter's Last Remaining Card To Play - anticipating
 * 2016-02-05 Buzzfeed: Twitter To Introduce Algorithmic Timeline As Soon As Next Week article uses both phrases: "An algorithmic feed would be, to date, the boldest change so far under Dorsey." and "Twitter has been testing the algorithmic timeline with a small group of users. It appears the test went well enough to roll it out more broadly."Emphasis added.
 * 2016-02-02 Engadget: Twitter's timeline option puts important tweets up top "The new feature drops what Twitter determines are the best tweets at the top of your timeline. Now before you lose your mind, the feature is opt-in for now. But in the coming weeks the company will slowly roll it out to everyone"

Instagram
Instagram has supported an algorithmic followings feed since 2016 when it was announced and a few months later rolled out to most users, presumably subsequently all users.
 * 2016-03-15 Announced: Instagram Blog: See the Moments You Care About First - announced that it will be coming "soon": "your feed will soon be ordered to show the moments we believe you will care about the most"
 * 2016-03-16 The Independent UK: Instagram feeds to show pictures according to relevance rather than time
 * 2016-06-02 Rolling out: Instagram Blog: See the Moments You Care About First - "You’ll see this new experience as we roll it out over the coming month."
 * 2016-06-03 Engadget: Instagram rolls out its Facebook-style algorithmic feed
 * 2016-06-07 The Guardian: New algorithm-driven Instagram feed rolled out to the dismay of users "users around the world reporting a new algorithm-driven feed"
 * 2016-06-06 tweet from @mlle_elle, author of that Guardian article: "has your Instagram changed to the new algorithm feed? (are the posts are ordered chronologically or jump between minutes to hours ago?)" Emphases added.