A lot of it is scammy mobile games that predate on people. But even if you take into account only PC+Console games, unlike shows and movies, the cash cows are

A lot of it is scammy mobile games that predate on people. But even if you take into account only PC+Console games, unlike shows and movies, the cash cows are free to play where value is maximally extracted based on the player's income. You can spend $0 if you can't afford anything, you can spend $20 if that's all you've got, or you can spend hundreds (even thousands). A movie can't really extract more than a couple ticket's worth regardless of how invested the person is (outside of maybe merchandising which is niche). Also realistically you might watch at most 10 times a movie (20 hours), while these games (LoL, Fortnite, CSGO, Valorant, etc) are often played for thousands or tens of thousands of hours. So obviously it's more reasonable to spend more on something that you play every day.