The concept seems like it could be interesting and there's a relatively cohesive world for the horror to take place in. Though I do wonder what the scenes would look like if they were as dark as intended, for sure. Otherwise though in general it mostly just felt slow to me. A lot of the game is spent waiting for the monster to move to a location or from a location etc..
To the point it sort of loses the suspense of having it right on you.
Ignoring the bugs etc. actual feedback I'd have would probably mostly center on having the ghost teleport around. Rather than fully follow the player. Teleporting near the player for certain situations or to jump them outside of areas. Ex. outside the box maze it could teleport there and get a quick jump.
It does seem like the story throughout is leading somewhere interesting I just unfortunately I as unable to see it due to some of the issues. I will be interested in checking it out tho when and if there is a post jam version ?
Overall though, it's a relatively restrictive game with a decent world and what could be a pretty terrifying monster. Though the horror is a little hard to gauge since at the moment it's not actually a threat.