I'm not an expert on Amazon's TOS, you can read/ interpret them same as I can. The part which I have seen and is in the lawsuit between Amazon and Parler specifically mentions harming others, so pot brownie recipes would likely not be affected.
If you run a site where illegal or even borderline legal activities are commonly discussed, it would be a good idea to talk to a lawyer.
Suppose someone posts a recipe for making marijuana brownies.
Will you moderate that post?
If you did not moderate that post, does Amazon AWS have a right to terminate your account for allowing your users to promote illegal behavior?