Back when they had the Curiosity Stream bundle content discovery basically didn’t matter, because they barely had any content. You could check the site like two or three times a week and there’d be like 4 or 5 new videos each time.

It’s expanded a huge amount since then. And they’ve added a larger degree of content discovery stuff. Personally I mostly just go straight to the “Latest Videos” section (which, unlike the confusingly-similarly-named “New Releases” section, only shows the latest videos from channels you follow), but there are a bunch of other ways you can let it suggest content to you.