The seam on the sphere is weird. The default sphere in the material doesn’t have those seams, normally a texture wraps around it with no seams except for the texture edges if it’s not tileable, but in this case the seam is in the middle of the texture, which is odd. If it were a custom sphere, I’d say the normals may flipped on one side, but with the default sphere I don’t even know what to say.
What happens if you select plane/cube/cylinder in the material?