I'd be interested in hearing the perspective of a video game programmer, because from my own intuition as a layman, it sounds as though making realistic model m

I'd be interested in hearing the perspective of a video game programmer, because from my own intuition as a layman, it sounds as though making realistic model movement is an order of magnitude harder than working on the environment alone. At least, the fact that this game has familiar human movement tropes that resembles decade old games sounds like a testament to that.