Normally, when an affiliate link is posted on a review, it is indicated that the link is affiliate. The same goes for the links that are non-affiliate.
When I make a review, I normally provide a link for the product I purchased or that was sent to me for free by a seller or manufacturer.
As I am not an affiliate member, I always indicate that the links are not-affiliate, even if it is not a “direct” link to the product!