So this is my vow. All Gods will die.
Due to a drought in his planet, Gorr’s daughter dies in the arid desert. He travels to a verdant oasis where he finds the Necrosword and makes a vow to kill all the Gods.
According to the Marvel Assembled documentary on the Making of Thor: Love and Thunder, the parched desert ground was filmed right near Little Bay, New South Wales. The oasis portion of the planet, where Gorr meets Rapu, was filmed on a soundstage using The Volume.
(Thor: Love and Thunder, 2022)