The stunning PC and console titles created with Unreal Engine often leverage advanced features such as MetaHuman, PCG, the procedural vegetation editor, and Substrate. Many developers question if these cutting-edge tools can be adapted for truly cross-platform projects that include mobile support. This post addresses that very topic, focusing on how to take these high-end marquee features and optimize them for mobile deployment without sacrificing performance.
https://dev.epicgames.com/community/learning/tutorials/eGEV/unreal-engine-metahuman-optimizing-next-gen-features-for-mobile-game-development