The main advantage of writing fiction in the third person (using the pronouns he, she, they, etc.) Information can be given to the reader about each character and situation, regardless of whether the individual characters know anything about it or not. This allows the writer to explore different characters and infer multiple perspectives, although it doesn't have to mean that's the case. This allows for a strong sense of scale in the story, but it also gives the writer the luxury of telling scenes from multiple perspectives and, therefore, offering different stories. This means that your reader is even more detached than you as a writer, and this can prevent some readers from developing empathy with your characters.
Sometimes, writers may choose to include elements of the first-person point of view by mentioning the characters' thoughts and feelings without using “he thought” or “she felt” in the text.