But the most important thing is that Genesis is not about mythological timeless truths. They are about historical events that took place in time.
They assert that the universe has a Beginning that created time and space. This is the basis of science and theology, not mythology. The Bible knew about the Beginning long before science and philosophy and it came from Gen 1 and John 1.
The Garden of Eden was not an identifiable place and does draw some characteristics from the ANE science, but these events are not mythological or timeless and independent of history, because they took place in time and space. It is experiential, based on human experience, not magic or theory.