Now, here is an interesting suggestion: think about what might have changed in the ME berween 2,100 B.C. and 1,200 BC when the Epic of Gilgamesh was finalized? I suggest that when you understand this you will understand the shift from the “Home of the Gods” from the Zagros Mountains possibly to the Mountsins of Lebanon, possibly.
Gilgamesh goes on a quest seeking the answer to immortality. He eventually arrives at the home of Utnapishtim and his wife who are survivors of the Flood. Their boat ended up coming to rest on Mt Nisir which is today known as Pir Omar Gudrun, and is in the northern Zagros Mts.
When the Hebrew version of the Flood was written, the resting place of the boat - now called an ark which means chest and is just how Utnspishtim described his boat - became Mt Ararat in the Armenian Highlands.
There are approx. 200 Flood stories worldwide and each tells a similar story of an angry God, rain, survival etc but the setting for purposes of understanding are altered to suit the environment in which each tribe, or whoever, lived.
Same with the original Epic. After 1000 years or so, the Babylonians wrote down their version to suit their location.
Not that the Flood was a literal flood, either. But the deeper meaning remained the same.