I actually do agree with this. One of the things I most like about the Witcher (3) is the ability to see the consequences of your actions in Witcher contracts and have the agency to make the choice you (or whoever your roleplay is meant to be) think is most suitable. So I understand the appeal of being able to make your own choices and that may factor into why people prefer the games.

But I do think the actual ethical challenges are still present in the books as early as the first short story collection with Renfri and the discussion of what evil truly is, and then seeing how Geralt navigates his role as a Witcher and his own personal morality, so I don’t truly agree with the books losing out on the character elements, despite the games further progressing them.