I suspect that generally coincided with the ability to use it briefly and then walk away for a day or more. Which ... isn't good for ad impressions, and I suspect the main driver for engagement hooking.
A lot of people don't have the ability to reject this, it seems, and it obviously has a real mental health toll. The second I find myself feeling "bad" when using an app I just close it down for weeks at a time. No place has that been more true or for longer than the current iteration of Twitter. Fundamentally ad-driven social media works best financially when they have you there mashing buttons and clicking posts.
True, it boggles the mind the extents to which some people twist and turn to salvage the usability of a system that's compromised and managed so that it actively works against your best interests.
It's like enumerating a list of pro tips on what sprinkles to pour over shit sandwiches to make them less revolting. No, sprinkles are not a solution. The solution is to not eat shit sandwiches.