To be honest, Oprah's content in my opinion was miles better than Mr. Beast's. She was at least conducting interviews, having conversations etc.
At least her videos weren't, "look at minecraft funny game - my friend made a poop sound hehe" or "omg look at kiddy pool filled with ORBEEZ FUN TIME"
Candidly, with a hilariously not successful youtube but a solid career - I find it funny to imagine Mr. Beast "spending hours" coming up with "next level content" which in reality you'd be better off just paying a 7 year old with jolly ranchers to do.