This is, simultaneously, the reason why social networks want to use non-chronological timelines, and exactly the reason to use chronological timelines: so that

This is, simultaneously, the reason why social networks want to use non-chronological timelines, and exactly the reason to use chronological timelines: so that it discourages perpetual usage. On Fediverse, I can open the page, read the things that are new since the last time, and close it.