Lighting Setup and Chroma Key

So watching the MGN videos I've noticed that Alex has achieved what George and the other guys from Freedom still have yet to perfect and that's a very crisp and clean Chroma Key setup, my question is mostly directed at Alex and hopefully, he reads this.

So I get the basics of how to setup a proper Chroma Key setup, I have an HD Camera, I have the green backdrop, but the chroma is pretty inconsistent when actually recording (using OBS) or streaming (OBS), I've tried to have as even as light on the backdrop as well as my face so there is no shadowing, but very so often if I move, as opposed to staying completely still like a statue.

So curious how you guys have your setups and how they look, you can learn as much as possible from reading, but visuals help