Both options are valid. It depends on high “authentic” you want to be honestly. Baking the details as a normal map is optimized and better for render-times since there’s significantly less geometry to calculate. However normal maps are by nature a visual trick and not “authentic” so-to-speak. Whereas if you leave the multires intact and turn it on when rendering (after rigging and animation) all of the detail is authentic and geometry based. So in a way it’s the highest quality render possible. Though it will take longer to render.
Does that help?
