Why friction force is not a conservation force ?

Why friction force is not a conservation force ?
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If an object starts its journey from a point and turns in a certain direction and then returns to the same point. This is possible in the case of gravitational forces and electric balls. This is because the direction of gravitational force or electric ball does not depend on the direction of motion of the object. However, the direction of the friction ball is always opposite to the motion of the object. So the negative work is always done by the force of friction in the way of moving the object. Then the object returns to its original point, but the total work done by the force of friction is not zero. Rather negative. For this reason friction force is not forest protection.
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