I've not attended CORE | Fundamentals of Rigging in Blender yet, but my understanding is that rigging is meant to be the primary toolset for posing our characters? Am I mistaken? Are we meant to combine sculpting with rigging for animation? Can someone provide a brief overview of how these two concepts work in tandem?
Sculpting is one type of modeling. Commonly used for organic characters. Then from there you do retopology which is where you build a more optimized mesh. Then usually bake a normal map from the sculpt to get the finer details. Then you rig to prepare for animation. Then animate.
Sculpting and rigging are not friends at all, the mesh density and bad topology that comes out of sculpting is not compatible with rigging. Those brushes you see for posing in sculpt mode is not rigging per se, it's just a tool that imitates rigging so you can pose your sculpt with much easy if you so desire. Before those tools, trying to move parts of your sculpture was next to impossible. Those tools now provide a way to fiddle with your sculpt enough just so if you wanted to tweak a pose.