Fame got to his head. He has become so much more arrogant and entitled. A much more selfish player compared to 2018.
With PSG offering him that crazy contract of 80 mil, he probably thought that he is the best in the world. Also Dechamps making him the main man for France contributed to his arrogance. But it all backfired, if France had made Benz or Griez their main player they would have won this game in regular time.
He also tried to do a Ronaldo and take all the glory with the final PK.