No matter what God is, as soon as there's any interface between God (whatever it is) and the universe, then God/universe is now a single framework, and God is part of the universe. One single miracle, one atom moved, and this must necessarily be so.
The only supernatural God would be one which cannot interact with the universe in any way, including creating it or destroying it.
The only supernatural God would be one which cannot interact with the universe in any way, including creating it or destroying it.