Paris Saint-German has tried to win the UEFA Champions League trophy since they signed Zlatan Ibrahimovic, but they failed to win it, and that also made them sign Messi, and they still failed to win the UEFA Champions League trophy. PSG should try to build a team and leave buying star players who will not even help them win the UEFA Champions League trophy.
Whatelse are PSG looking for? They're the ones that persuaded the big names and escorted out of the Parc des Princes stadium and why are they're all complaining. They're always winning top spot and becoming a more vigilant club. The club's winning the UCL title are important but it will take more time, definitely not with the current squad because there are quite significant factors that would hinder PSG from climbing the top. The trophy season is here but its not considered the major titles. This season, Paris Saint-Germain have become vulnerable, mere facing Newcastle United, they lost heavily in your hands.
Yes, however they try, it is an effort they make to be able to continue to compete at a league level that is higher than the domestic league that they can win continuously every season, and yes maybe that is also one of the only benefits they get when recruiting star players to join them, in addition to increasing the team's performance also increases the popularity of PSG itself.
But yes they are quite difficult to compete in the UCL even though every year they have star players in their squad, because basically even star players will not be strong enough to bring a team to win matches if they do not have teammates who have good chemistry and ability to pursue how the star players play heroic on the field.