I think Spyro is one of the best examples of Gouraud shading mastery on the system. The textures are there to add detail, in fact they had a basic LOD system for the environment where they swapped textured models with gouraud shaded models using the same tint for objects far away.

The skyboxes were rendered as well as meshes and then shaded, and they still hold up today from an artistic point of view: https://imgur.com/gallery/vocZw