The situation in my family is like this. One of my master bedrooms faces south, and the balcony window faces a road. Is it harmful to feng shui?

The balcony facing the road does not affect anything, even if the door faces the road, it is not necessarily bad. How can I get home without a road? How can I get the money without a road? Those sermons are nonsense and don't understand the connotation of feng shui!

Whether your feng shui is good or not depends on the surrounding environment, internal layout and furniture arrangement. You said that the balcony faces the road, which doesn't mean anything.