Were the Chief Sumerian/Akkadian Gods a Distorted Trinity?

The standard establishment line today is that the Trinity is a New Testament concept. This is completely wrong as has been shown on this channel and elsewhere. The Trinity is in the Old Testament from the start. But how far back does the concept go? There are some intriguing data points to suggest that the top of the ancient Sumerian pantheon was a distorted take on the biblical Trinity.

Link to book's Amazon page https://www.amazon.com/dp/B06XRLDYJB