Nowadays, people think that Feng Shui has nothing to do with surnames, but in the Tang Dynasty, there was a book called "Five Surnames", which determined the door direction and the sitting direction of the ghost house based on the five elements of the pronunciation of the surname. Do you know why the tombs of emperors in the Song Dynasty are located in the north and south? It is influenced by this theory.
So is there any objective connection between surname and Feng Shui? According to my observation, there are still some, just like the Luofengpo in the Three Kingdoms. Nowadays, most of what people study is the factors of heaven and earth, without considering people, even if they only consider birth year or immortal destiny. If you want to completely destroy your luck, you still need a surname.