Of course we find the traces of Noah’s flood - every inland desert on the planet is abundantly littered with the fossils of salt-water ocean dwelling creatures. How did these legless, lungless, salt-dependant creatures get over the mountains and travel 3,000 miles over land and fresh water - unless there was, at some point in history, a world-wide flood?
In addition to that, every culture old enough to go back that far has a “flood myth,” in addition to a “creation myth” that gives the
same order of Creation as the first chapter of Genesis - first the water, then the sky, then the land, then the sea dwelling creatures, then the birds, and then the land creatures, and last of all, the people. The details change, of course, but the main ideas do not.