Monsters University was the first pixar movie that used global illumination, which means that modern games with VXAO will be better in some aspects than any pre-MU pixar movie, but the level of detail will be obviously a great deal lower.
Monster's University was not the first Pixar movie to use global illumination, but it was the first Pixar movie that used path tracing (combined with rasterization for the primary visibility). Earlier movies such as Up and Toy Story 3 used Point Based Global Illumination.