2023.2.XThird Party Issue
This was an issue with the setup, the scene was needing some more configuration due to the ground plane not receiving light from the two point lights due to both Red and Green layers being disabled.
This meant the ground plane wasn't being lit so that it could not receive shadows since it needs to be lit to be able to have shadowing.
The example this was based off in the docs started with the ground plane being lit by all layers, thus was the defining difference between setups.