I work in Game Making.

There's a ton of stuff in it which has been called "AI" for literally decades and almost none of it is Machine Learnrning: for example the A* pathing algorithm for characters in a game is called "AI", as are Steering Behaviours that can be used in things like simulating bird flocks, and both are entirelly algorithmic, not ML.

In my own experience ML is seldom useful in games, mainly because algorithms are lighter and generally work more reliably.

You're confusing use of "AI" in the Marketing of the present day tech bros trying to make money pumping up a Tech Bubble on top of certain very specific forms of Machine Learning, with the actual general meaning of the acronym.