“If” the pyramids, and to include the sphinx, were built pre-flood, then the whole moses-exodus goes down the potty.
( neither fantasy is big on my list.)
If the revised timeline of the video is accepted then there is no problem resolving issue with the exodus and epyptian chronology either.
There is growing evidence and support for David Rohl’s revision of the the timing of the exodus and who the Pharoah was. The following is a long presentation but very compelling.
There is archaelogical evidence that there was a settlement of Caananite/non Egytian people in Goshen. Egyptologists don’t want to acknowledge that this settlement could have been the Israelites as it would force them to revise their theories. They reject it on the basis that the timeline does not match the timing of the exodus. Linguistic mix up led the the wrong Pharaoh being identified as the Pharaoh of the exodus, and this led to rejection of the Exodus as a historical event, due to the timeline not lining up.
https://www.youtube.com/watch?v=QEm-ovpMM5c&t=24s
See also the film “Patterns of Evidence: The Exodus” for more evidence the Exodus was a real event. Even if you are a sceptic, you would have to concede the sheer amount of times the Exodus is mentioned in scripture in the old testament does not fit with it being a fictitious event.