If you are on pc, then you get a hint on what button to use to interact with door, but for mobile, if mobile controls are enabled, then you use a button that appears on screen, and if that doesn't work... Well, guess I didn't fix some things, though I did actually do the work on fixing bugs and it means I have journey to get into 😐
Hope this is helpful, please tell me if you get into any issues! Right now I am taking a rest from game development, but the second I get enough feedback, I am starting to work on the game! 😁