Blender to Unity model textures to bake or not to bake ?

I'm trying to get my blender models into unity as quickly as possible. The only process I know of is creating maps for each asset in blender and then bringing the object into Unity and reconnecting the maps there. I have seen someone open a .blend file in Unity with all of their assets mapped and wrapped. Is this because they've already baked their procedural textures in blender and connected them there or is there a way to go straight from blender to Unity

 

Bake as much as possible. There is no way to directly import complex shader node network. Otherwise, you'll have to rewrite everything (both node configuration and, I assume, the code that generates procedural maps themselves) inside Unity custom shader