Which products specifically? From what I can ascertain, the vast majority of vegan options are better for the environment for several reasons. Even though some vegan products are better than other vegan products (e.g., oats and soy beans over almonds), they all beat out their animal alternatives by a mile.

vegan options do not stop at food, please do not have a one-track brain here. many vegan product items have many well-described issues such as relying heavily on plastics that degrade poorly or contribute to environmental pollution, in addition to being less resilient than animal-based counterparts (and thus needing to be more frequently replaced).