Not: Gilgamesh is the oldest still surviving written story.
There was writing older than Gilgamesh. There were cities and culture before 2000BCE. Its just so old that nothing at all survived beyond that time period.
There’s the Bronze Age Collapse, Burning of the Great Library, and many other events that destroyed history in the 1000BCE period. Those old people may have had older records than Gilgamesh, but all we have today is Gilgamesh if that makes any sense.
Gravediggers at the Elephant Graveyard.