Pogba wasn't that great at the WC, its a misguided opinion that Pogba was class.
His place in the team was under question and bar the goal in the final he wasn't great.
Pogba also displayed horrendous form under Mourinho, so your argument fails. Ole hasn't made Pogba play bad, neither did Jose. He just doesn't apply his talents properly.
Maddison plays in a better team unit I agree, Maddison also plays with creative freedom and influences games in a way Pogba doesnt
Pogba's place wasn't under question and he was good during the entire competition.