In the days of yore, if I wanted to buy a table-top roleplaying game, I had to travel to Toronto, the nearest major city. If I wanted inked dice, I had to hand-ink them myself. If I wanted fellow gamers, I had to shape mud into human form and breathe life into my golems (oops, no, I couldn’t do that, sometimes I just wished I could).
In those days, most TTRPGs treated gods as a sort of theological ConEd for wandering clerics. Gods had different names and superficial attributes, but otherwise their cults were much of a muchness, with no actual doctrinal differences.