It actually is meant to make it more spacious however there is a bug that prevents that.
Basically, because you need the dishes to increase every time you eat, you need to increase the amount of dishes in the sink task.
However the sink has a task script and accidentally all of the tasks are listening to the event that increases the dish amount.
So whenever you eat they increase their own trash aswell, meaning that so long as you are eating the room will not get more spacious lol.
So far the only realistic way to win is to get the determination ending.
Sorry for this bug lol.