So i started to try latest version of Lightweight Render Pipeline which is Universal Render Pipeline now. I was trying to get similar look from standart renderer with FOG and saw this behaviour. I am not sure if this is expected or not but it is acting on per object bases somehow. Scene contains 3 U shaped meshes sticked end to end.
Wow ,i thought that urp renders so wierd but its just fog.I scaled my whole game down ( scaling al the objects in the scene so the fog could not be seen). Thanks1