Some like Thor or a charioteer that drives the sun across the sky then walks it back through the underworld, are pretty easy to disprove.
Most gods with a direct and necessary role in nature are pretty easy to disprove because we now know how lots of thing in nature work. So rain gods need not reply.
Then there is a question of how a god is described. Yahweh can't be omnipotent cause there are logical contradictions, can he make a rock too heavy for him to lift or make a married bachelor? So he got down graded to maximally-logically-consistent-potent.
Then there is the question of how we know a god.
Direct revelation would be great, but doesn't seem to happen now. Inner revelation, the internal witness is problematic because if a god dwelt in us then there could be no doubt, yet even the most fervent believer has doubts.
So the vast majority of people get their knowledge of gods indirectly, either from church writing or a person telling them. The problems here should be obvious. I don't know any holy book without contradictions or some really problematic things in it. Given the number of grifters out there, how do you tell the holy ones from Jim Jones?
So yes you can disprove gods.
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