How are Materials actually handled in a UE Project?

Thanks. So this is why this particular tutorial seems confusing, while in Maya, the author looks like he is adding textures to meshes. I understand Maya is where a rough block mesh would be sent to turn it into a finished product, and maybe somewhere it will be explained, but I’m not seeing the advantage of applying textures in Maya if they will end up in UE, and a material will be applied there. I mean, materials WILL be used, so I don’t yet see the reason why you’d be applying textures while in Maya. It seems like a waste of time and obviously I’m not understanding a part of the process such as “specifically create the texture to a model.” ← does this happen in Maya or Blender?