A room kept exactly the same can ask someone to return as exactly the same person.

A room left untouched can be tenderness and can also be an expectation. Everything preserved as it was invites the person to arrive as they were, which is not possible, and the gap between the room and who they have become can make visiting quietly difficult.

If you keep such a room, it is worth asking the person what they would like rather than assuming the preservation is a gift. And if you find returning home hard for reasons you cannot name, this may be part of it. Being met as your current self is a real need.