Yep, walking through doors is a bit confusing, the intuitive way would be to left click it, but I kinda ran out of time to implement it like that. Basically to walk through the door you gotta look at it and press W. There are more doors throughout the game but some of them are impassable, if you look at them and press W and nothing happens it means it is unpassable. Chaging the sprite for when the door is unlocked could have also helped with the confusion too, maybe in a post jam update. Thank you for sharing your experience!