YT basically just sends me comedy sketches and bad sci-fi shorts. Lemmy basically sends me memes about popular culture and science... And that's it, those are the feeds that exist, right?
If there is a whoosh moment, it's this one. But technically, no, I browse by "new", and that's what I subscribe to.
About You Tube, yep, it can change in a whim just by clicking on the wrong video and watching the few seconds it takes to discover it's some crazy piece of shit. Anyway, there's fun stuff there.