The DC Multiverse is fundamentally based on belief. Numerous mythological cultures and traditions coexist, each with its own gods, cosmology, and account of creation. These traditions emerge from the Collective Unconscious, where the thoughts, dreams, and beliefs of sentient beings shape and sustain them. Thus, each mythology contains a grain of truth, not in contradiction with the others, but as a different perspective on the same truth. For example, Hindu traditions consider Brahma to be the origin of existence, while Christian traditions attribute creation to Yahweh. Although these figures may seem distinct, they can be understood as different cultural expressions of the same ultimate source. Likewise, Michael Demiurgos is interpreted as Kali within Hindu belief, while Lucifer's rebellion is reflected across history, with every war serving as a shade or a reflection of that original conflict.
Furthermore, Scott Snyder hinted in an interview with Imaginary Axis that the creation of Yahweh with Lucifer and Michael occurred after Perpetua's imprisonment in the Source Wall, which is confirmed by Mark Waid's New History of the DC Universe. The JLA scans I shared previously add more evidence and reaffirm that God is perceived differently across cultures. Vertigo is thus compatible with the mainstream DC continuity.