Bayern Munich also comes from a league that is less competitive, but they are remarkably successful in the Champions League. I think PSG could also become like that Bundesliga giant, even though they come from Ligue 1, which is considered less competitive, PSG has the ability to win the Champions League trophy. One more step, PSG can make history and silence the people who have underestimated them all this time. Perhaps in the future, a wealthy investor will come and acquire one of the Ligue 1 clubs, so that PSG has a balanced rival at the domestic level.
Become the champions is not because of the quality of the league, but the quality of team players when played at final. We know, Bayern Muenchen have a lot of good players and solid strategy when they are get UCL Throphy. PSG also have several star players last few season, but they are still unable to win a single UCL. So, from this point, we can say no matter how good the quality of the league, if in the final unable to bring a solid strategy, they will lose. It's okay, PSG become the first in france, but if in the final, Inter showing their best performance and solid strategy, may Inter can be the winner.