[hesdeadjim]

I would label it "different". Unity can target a wider swath of devices from a perf point of view, and in general is much more lightweight. It's also easier to customize and strip of components you aren't interested in.

The downside of course is that it's not a master of anything, and Unreal has great showcases to demonstrate that.

Unity isn't going away, devs aren't going to magically switch to Unreal for the above reasons. Additionally the transition is massively disruptive for a business built around Unity. You don't just magically become Unreal experts as a team by reading a few tutorials and building a couple of prototypes. Actually shipping a game cross-platform requires a huge amount of technical experience to optimize and work around issues that each brings.