[armchairhacker]

Note though, the goal isn't quite to keep you interacting with the app as possible. The goal is to get the most people interacting with the app to get the most revenue.

Probably why a lot of these changes make apps less engaging for people like the author and commenters here. That random boomer photo is probably popular among the average person even though it doesn't fit into your feed. Facebook/Instagram don't care about your interaction and revenue in particular, they care about getting the most interaction and revenue in general.