Somehow Enrique managed to do it. In the group stage PSG did not look like a team capable of winning this tournament at all, especially since they were even outside the qualification zone and only at the very end managed to get a place in the playoffs. There was also a lot of talk that without Mbappe it would be harder for them, but Enrique said that they would be better without him. I think at that time nobody believed that PSG could win the Champions League, but closer to the final everything changed and they scored a lot and easily beat any opponent. If Enrique can keep everything the way it is, I think they will be capable of repeating it again.
This Champions League title is an example on the importance of giving enough patience, time and chance to a head coach. Enrique would be fired if it is PSG years ago, or if he works for another club. However, PSG changed their strategy recent years and they put high belief on Enrique, gave him time to finish his work.
It is truly an inspiring story but other clubs can fail and the example is Manchester United with their failures by putting belief on Solskajer and Ten Hag in some seasons together with a lot of money for transfers. Enrique is different and he is able to help a club winning titles even big one like Champions League. With a good head coach, gives him time and support, your club will gain sweet results eventually.
Oppositely, with imcapable head coaches, giving them more time and opportunity means more pain for your club.