On Frontier's main website, in the Investors section, the first sentence reads "Based in Cambridge with a growing team of over 680 talented people, Frontier uses its proprietary COBRA game development technology to create innovative genre-leading games, primarily for personal computers and videogame consoles."
My emphasis. Frontier repeatedly stress the importantance of Cobra in their corporate blurb. That it is, in effect, a pillar of their technological advantage. Switching one of their most high profile games off this platform, after years of hailing at every opportunity, would have serious consequences for their reputation, and therefore also share price.
Please correct me if I am wrong, but I don't believe there is anybody in this thread with actually commercial expertise in UE5, even less chance of anyone with actual experience of Cobra, let alone anyone with experience of both. So there is no properly informed opinion here. This "ship of fools" is not going to raise awareness or influence FDevs technical decision making in anyway. Do get me wrong, its fun to discuss, but don't get any delusions here.