I agree with you, we all know unreal engine 4 is best at PC and console, Unity and Unreal are both good engines, everyone know unreal engine is the best in a long time.
unreal engine dose support mobile develop, but too many problem need to solve, a bit slow.
I’m both Unity and Unreal engine 4 developer, I love unreal engine 4, use it for a long time,
just want it to be better, I don’t think epic limit the unreal engine 4 only for PC and console.
as a product, I wish more and more people use unreal engine 4 and make it better.