Is Feng Shui considered literature?

Doesn’t count.

Feng Shui is a comprehensive subject, covering many aspects such as mathematics, humanities, astronomy, geography, environment, psychology, and martial arts. It is usually classified into traditional Chinese architectural culture, that is, Chinese architecture is composed of three parts: architecture, gardening, and Feng Shui.

Feng Shui is also called the art of Kanyu, and there are many schools. Kanyu masters have to go on-site when searching for dragons and selecting sites, and sometimes they enter the geography profession.