What resolution do you use? Also can you maybe provide a screenshot? It's weird that you have this problem, because I tested all possible resolutions before releasing the game.
The puzzles are a bit hard and I wasn't able to finish it, but it's a pretty good game. I like how the game has a ton of lore that you need to piece together
Thanks a lot for your feedback. I do game dev for a few years already, but this was my first try at making a horror game. Also, I'm already working on the next one :)