I’m prototyping a top‑down action game and want one control scheme that feels natural on Xbox controller, KBM, and mobile touch, but I’m fighting thumb‑reach on 6.5" screens and mismatched deadzones between pads. For those who’ve done this, what thumb arc or button spacing targets worked (I’m seeing about 55–60 mm comfortable reach in portrait) and did Unreal’s Enhanced Input plus a Steam Input layer keep interactions consistent without breaking ergonomics?