To add to other answers, the result for the ‘all’ feed is likely to be cached, either explicitly by the server app or implicitly by the database. Personal feeds are less likely to be cached, since they're only used by individual users.
Strictly speaking, the db might be looking in an index to choose rows by the communities — but using such a condition is pretty much guaranteed to be slower than not using it, anyway.
The actual answer depends on the actual database organization, of course. Ideally the whole database should be organized around frequent queries.
Behold: 🫴 benzos.
Took them long enough, it seems. Apparently lack of traffic controllers wasn't preventing flights last week.
Least it keeps away from politics
You continue making it difficult to believe that you actually saw ‘Babylon 5’.
It's just a rando account who recreates the manner in which Newsom's office tweets.
It's not Newsom's press office.
Wait until yall hear about cat brushes.
Have you walked around the whole day in tight jeans, with your legs sweating up a swamp? Do your legs itch like mad upon you taking off the jeans? Introducing the cat brush, the premier method to scratch the fuck out of that itch, leading to heavenly satisfaction. Doubles as an exfoliant!

Imgur users on ‘new’ once ran an experiment for a day where they upvoted basically anything — in practice, oddest and weirdest stuff bubbled up. I've never seen such entertaining feed before or after.
Loop Habit Tracker is pretty good for this. In particular, it allows you to schedule stuff like ‘twice a month’, or even ‘run 10 km a week’ or somesuch. The app shows the whole list, but marks which tasks are done and which aren't yet. Plus there are notifications and widgets, but I haven't used the latter.
Best part is that it's open-source and requires nearly zero permissions. OTOH the data isn't synced anywhere.
Haven't played ‘Max Payne’ in twenty years, completely forgot what it looks like in-game, and still the first thought from the screenshot was “Max Payne”.