I can't remember name dropping Darkseid, but Steppenwolf talks about the New Gods which is the villain faction run by Darkseid.
That may be what I'm thinking of. Though I could've sworn he said Darkseid when he brought all the boxes together for the first time but I'm not sure.
There was a hint that Cyborg made contact with him during that scene and Steppenwolf say something like "Do you understand now?" but he never said the name. Lois teases a lot at the end about "darkness" as well. ---
