Besides watching movies, there’s not all that much to do with Apple’s Vision Pro once you get over the novelty. That’s why I was eager to try Disney and Marvel’s new What If…? An Immersive Story experience / TV show / video game… thing that’s available on May 30th. The companies promised a mixed reality show that would “push the boundaries of technology.” But what I experienced, while very pretty to look at, ended up feeling like an overlong, no-stakes video game tutorial…