Intuitively you’d think that following someone indicates that you want to see their posts immediately after they post it, but the “algorithms” distort that entirely as a way of making money for the platform.
Whether it’s requiring people to pay $$ to reach more followers, or promoting “posts” (ads) from other paying accounts that you’re not following, or even promoting sticky content designed to keep users on the app a little bit longer (and thus expose them to more ads + boost their DAU count). The whole “timeline” paradigm is a lie. I mean, it’s rarely even sorted by time.