Realtime Pointlights don't work properly

Hello,

I am creating a completely procedural maze without any prefabs. Everything works fine. I just cannot get the lighting to work properly.

The maze is indoors so I cant use directional light.
So I am using point lights. And I need realtime light because my maze expands the further you walk in one direction, so I cant bake it.

To visualise my lighting I created a quick and simple scene with unitys standard meshes, and one simple point light which casts shadows.
In my 2 screenshots you can see both problems I have. The shadows just dont behave right.
It is really frustrating. How can I get good lighting?

I am using URP, my camera is set to deferred and my shadow normal bias is also 0. It just doesnt make sense to me at this point:/


Seems like the meshes don’t connect perfectly. Make sure it perfectly hits or put it slightly inside the other object.
Otherwise adjust shadow/lighting settings like normal

It makes no difference. When i put the cube into the ground, the problem persists. And what settings do I need to change? I already tried everything.

in URP asset the normal bias and depth bias