Earlier quoted context omitted.
Is this accurate in all cases? Isn't Jenny Nicholson one of the bigger YouTubers, with videos coming out maybe once or twice a year?
There are a few 'long form' creators like Jenny Nicholson (I recommend the one about the failure of the Star Wars Hotel!). Contrapoints (eg the Twilight one), Big Joel's (recently made a 6hr one!), FoldingIdeas and so on. It's a very different model, and a number of these creators also make videos for Nebula.
It's a very different business model, and it doesn't have the potential to become as profitable as Mr Beast.