“Laniakea”, from Dima Taran, is an animated short film with a curious premise (5 min, Nov 2020).
In the future, mankind has developed the ability to travel through wormholes at supra-luminal speeds and search the observable universe for other civilizations and found nothing.
But then a monolith in space has a clue, leading to a particular planet with gigantic megastructures with nurseries for future life but no actual living individuals.
The film draws from “2001: A Space Odyssey” but maybe also “Alien”.
The title of the film refers to our home supercluster.
Wikipedia embed (click for attibution), map of the Universe's supercluster