Fog and shadows are striped when camera is far

Hello, I"m trying to create a long distance landscape for a scene with exponential fog and static baked light. But it all looks as needed when camera is close to the landscape. When it’s far fog and shadows become striped and the further I move the camera, the larger those stripes get. What is that, I tried to play with settings but I don’t even know what causes it. Can anyone help?

Here are screenshots. Close distance and far distance.