It's not even just copyright strikes. Sometimes they worry about being demonetised over swearing or other minor indecencies so they self-censor more than they should to be safe.

I saw one video where they spent some time up front saying how great Stadia is so the algorithm treats them nicely before spending the next 10 minutes saying how bad it is. They were clearly joking, but it does make me think about the type of control the system has and what messages get promoted. Who knows?