Currently when you bake a reflection cubemap in Eevee, all metallic objects appear black in the cube map. It would be great if instead of appearing black, they were instead rendered once with screenspace reflections.

It would be a lot more accurate that just rendering them black, and it would only be done once at a low resolution during the cubemap computation.

At the very least it should use the "base color," or something instead of rendering them black.