no, it's because youtube's monetization rewards longerform and daily consistent content and the longer your videos are, the more editing and time is required. it pushes creators down a path of recording gameplay and uploading it daily since making creative videos yields no income
most Gaming Creators fail
and it's because they don't wanna be Content Creators
they just wanna get paid to play games
they'll upload low-effort videos and expect people to watch them
10 min gameplay, 30 min let's play, etc.
that worked back in the day..
but doesn't anymore