There were definitely chattel slaves in Ancient Egypt!
Like Josef.
In general see
https://en.wikipedia.org/wiki/Slavery_in_ancient_Egypt#:~:text=There%20were%20three%20types%20of,people%20of%20various%20social%20ranks.
Building pyramids may not be slave job, but that does not matter.
Do you even know what a chattel save is? With the lame wiki reference, you prove you do not know.