https://www.cbr.com/netflix-3-body-problem-changes-to-books/

Netflix's 3 Body Problem is a (mostly) faithful adaptation of Cixin Liu's iconic sci-fi trilogy, but it makes several changes to its source material.

How Netflix's 3 Body Problem Differs From the Books (https://www.cbr.com/3-body-problem-differences-from-book/)

Season 1 of Netflix's 3 Body Problem condenses three novels from Liu Cixin, which begs the question of how much is changed from the source material.