Make sure the objects on your map which are not moveable are set as Static as well, or else they will not receive lightmaps. You’d generally do that to as much as you can, leave stuff like chests or opening doors as Stationary. For characters though you will lose all dynamic shadows. You have two options there, either have some select shadows be left as dynamic shadow casters or you could try using capsule shadows.
You can get capsule shadows from global illumination for indoor scenes and they are cheaper than normal dynamic shadows. They don’t look quite as good and require you to create a capsule for them, but for VR I found this was the best route. It allowed me to bake all the lighting on my map and since I was using all indoor maps (currently on a dungeon crawler) I had no sunlight to cast dynamic shadows, but this route allowed me to still have them and was cheaper. So something to consider.