There is no record of the Egyptians having Olympic contests. The Greeks did and they were called Olympic after Mt. Olympus atop which lived Greek gods.
Moreover, the Greek contests were male only events and the men competed in the nude.
The Egyptians may well have had athletic contests, but they most certainly were not “Olympic”.
This is well documented. Upshot: Anything this so-called archaeologist and/or historian says is automatically suspect.
You’re aware that Alexander conquered Egypt and from then on it was ruled by Greeks (i.e. the Ptolemic line) until Agrippa defeated Antony & Cleopatra at Actium?
Professor Elizabeth Carney of Clemson University has done a lot of work on Hellenistic queens, including those of the Ptolemaic dynasty--Google "Elizabeth Carney Clemson University Arsinoe" and various items will come up.