How to assign which UV map when multiple are available to use in 2.8+? I read this question about having two different UV mappings on a model.
Can I have two different UV unwrappings of the same object?

I have two versions of UV map for a mesh and I want to pick which UV gets used on which material in 2.8 but I do not see where to do that. How can this be done in 2.8?
This can be accomplished by using the UV Map node (Input > UV Map), it allows you to select one of the UV maps associated with the object. The Texture Coordinate node always uses the active UV map.