the ancient Romans were fun in that regard. They just went and collected gods from all over like Pokemon. "Oh he's a fire-type god who you pray to when you want to do some blacksmithing? Yep he's ours now. Oh she's the goddess of farming? Cool we'll take her"
their disdain and prosecution of Jews and Christians back then was from the Jews and Christians going "we only have ONE god and all the other gods are false" and the Romans were all "wtf we're cool with your god why aren't you cool with ours?" Overly simplifying it of course, but that's part of why
They were practical like that, if you need something you pray to the god that dealt with that thing. 'course after they converted they still kept with the practice, just replacing gods with saints for intercessions.
Overly simplifying it of course, but that's part of why