I don't think there's any explicit youtube rule that guarantees they will make more money from premium viewers, but it's confirmed by creators who have showed t

I don't think there's any explicit youtube rule that guarantees they will make more money from premium viewers, but it's confirmed by creators who have showed their income reports, or at least talked about their income breakdown. And Premium views always pay better. Another anecdote I've heard from several creators is that much longer videos (like a 5 hour livestream recording) are now much more profitable because of premium viewers. With ads they either need to include an ad every 10 minutes, which means 30 ads in one video and turns people away. Or they only include a few ads in which case people do watch it, but it's far less profitable than a 10 minute video with a midroll ad.