I'm pretty sure loading an obj would have answered your question.
But YES (of course) the very old and still widely used Wavefront OBJ stores UVs. Most if not all 3D apps nowadays understand .obj perfectly.
Even DAZ.
PS : Given the fact that there is no unwrapper in DAZ, it should be obvious that UVs come from somewhere else, so yes, UVs are loaded when importing an obj, fbx, dae, etc.