Scariest maze for me in a while was Krampus, and that was not a scary movie. Intense maze though, while still being plenty funny with the kitchen scene and whatnot. The Shining is one of the most intense movies I've seen meanwhile, and it was kinda middle-of-the-road as far as mazes go.
It's funny, there isn't anything innately "scary" about a jumpscare, right? Like, you can be scared if a possum jumped in through the window, but you're not gonna stay up at night because of it; and tons of people laugh after jump scares in movies, even with "serious" horror movies like The Conjuring and Halloween. The line really isn't that thick. I think plenty of people will be scared by something kinda cartoony looking jumping out at them from a corner they weren't looking at, and I'm sure that as they go through, it's going to be just as intense as if Jason or Freddy was gunning for them. Best scare I had last year was from a giant skull for God's sake, one of the top 10 hoakiest horror elements ever, but it didn't matter when it was screaming at me from the dark.