Brave New World wasn’t really the Red Hulk, as promotional materials suggested. Although that is indeed who Cap has a big, final act fight with.

Julius Onah discusses the look of the MCU villain: "You want to make sure that even with these heightened characters, it fits into the world of the film."

Brave New World is immense. The first-ever theatrical motion picture headlined by Sam Wilson’s iteration of Captain America not only featured staples of The Falcon and the Winter Soldier, but also contained key players from The Incredible Hulk and even a Celestial from Eternals.