Yeah, but a defintion is not a fact. This is one defintion of god, but you wouldn't accept it as a fact:
The creator and ruler of the universe and source of all moral authority; the supreme being.
Facts require evidence. Evidence that are testable and measurable observations.
What evidence are there for any god to be fact?
There are none. No such evidence exist, where any God can be observed. There are no facts on any creator or supreme being…just faith-based beliefs, and that‘s no better than superstition.
There are no evidence for any god than there are for spirits, angels, demons, jinns, fairies, unicorns, and so many other supernatural entities.
You are not that good at epistemology when it comes to how it is, science is based on methodlogical naturalism and not philosophical naturalism.
That much is true.
Philosophical Naturalism or Metaphysical Naturalism only will accept natural phenomena and their (natural) mechanisms, and reject all forms of supernatural phenomena and supernatural entities.
Methodological Naturalism also accept evidence from nature, however it does not outright reject any supernatural phenomena (nor favour them)…Methodological Naturalism is simply neutral on all matters of the supernatural, as the supernatural won’t even be investigated, as any supernatural element won’t be “falsifiable”, which I would say more, below.
Methodological Naturalism is the general framework for how any Natural Sciences & Physical Sciences may proceed, and these “proposed” scientific theories require to pass both Falsifiability & Scientific Method.
People often misunderstand and misrepresent the FALSIFIABILITY.
Falsifiability is any model, concept or idea that are testable or refutable…meaning you can eventually test the models, when you have a working hypothesis. So if the models, concepts or ideas are unfalsifiable, then that would mean they are untestable, which would disqualify the models from being a “hypothesis”, and you could not proceed to the next requirement of science - the Scientific Method.
Failing even the first one - a concept, idea or model MUST BE FALSIFIABLE, then such models, concepts or ideas are just pseudoscience claims.
What you call god, or Creator, Designer, Supreme Being, and so on of whatever names or titles that you want to give this imaginary being of yours, have never pass the first step - that of being FALSIFIABLE, then it would not even be possible to proceed to the next stage - the SCIENTIFIC METHOD.
My points. While Methodological Naturalism don’t require any scientist to outright reject the “supernatural” as Philosophical or Metaphysical Naturalism do, but the Falsifiability & Scientific Method are in place with Methodological Naturalism, that the “supernatural” elements are ignored.
As supernatural is unfalsifiable, then the very concept of supernatural have explanatory & predictive powers, which are essential for the development of a hypothesis in Scientific Method.
your “supreme being” isn’t falsifiable, therefore you cannot test your creator.