I was using the Mac build and found the game to be really buggy. When I rewind time with my mouse button, it doesn't play the sfx. When I click the main_menu or next level after winning, then for a moment it plays the rewind sfx. And sometimes, the camera glitches out when the guards are very close and walking towards you, and I got jump scared after seeing a guards hideous face(istg, that face is of a man who killed his wife and children).
The guards visibility could be better(they can't see me if i'm right in front of them across the hallway until they get really close). Maybe include periphery vision. The tutorial is pretty much an information word dump which is not the best approach to explain to the player how the game works(luckily your game is pretty simple and intuitive, but the tutorial could do some work).
Apart from these, I found the concept to be really cool. To be able to undo your mistakes when you get caught is amazing and try to finish the level by getting caught the least amount of times is a smart mechanic. The bg music was calming and chill. This is a good prototype for a puzzle game I would dig to play.