The door frame is lintel, and the door is shortened, but it becomes a double door frame, which is not good. There are many discussions at home. Personally, I suggest changing the door frame directly, and don't leave bad luck to save time. Feng shui conditioning is based on inches. If you add an inch to the lintel, it will be a double door frame. You can modify and lower the door frame and build a solid wall on it.
If it helps, adopt it in time