With new releases, DC has made its answer to Thanos in movies and series clear, but it was not the expected one. Josh Brolin played Thanos in the Marvel Cinematic Universe. Like he has in the comics, Brolin’s version of the Mad Titan played a major role in the MCU, serving as the ultimate villain of the Infinity Saga and two Avengers movies. 2019’s Avengers: Endgame saw Thanos be snapped from existence by Iron Man, ending his threat. With James Gunn’s DC Universe starting soon, future DC movies and series could use an overarching villain like Thanos.
https://screenrant.com/dc-thanos-amanda-waller-show-confirmation-answer/