Only a god that was material would be accepted by scientists, as they reject as a fundamental fact that there is anything beyond matter & energy.
Well, no. Scientists
currently believe, based on evidence, that the universe is comprised only of matter/energy (same thing), spacetime, fundamental forces, etc.
Well
yes. Materialism is a given in modern science.
It's not a belief based on evidence, it's a fundamental axiom of the system of science. Feel free to research it...
But this is the thing about science - if you present evidence that the universe extends beyond the current model, scientists will change their minds. Just like they did when Einstein extended the classical model of relativity.
If anything non-material is rejected a priori, then nothing will ever be 'discovered' or theorized that's non-material.