Well, the determination of whether God of War comics are canon can vary. It often depends on how closely they align with the established lore and storyline of the game franchise. Sometimes they might expand or complement the existing universe, but it's not always straightforward to classify them as strictly canon.
Porn comics tend to have a narrow focus on sexual content, with little emphasis on character development or plot. They may also violate moral and legal standards in many places.
Absolutely not. Porn comics are often not safe as they can promote unhealthy behaviors and distorted views of relationships and sexuality. They may also violate legal and moral standards.
Definitely illegal. Producing, distributing, or possessing child porn comics is a serious crime because it violates the rights and safety of children and is against the law in most countries.