In the future, if PSG can build their squad as well as possible and really utilize their capabilities financially, there is big possibility that competitions like the UCL will have chance to win.
By the way, this season they managed to reach the semifinals of the UCL and this is big achievement for team like PSG, but I doubt they will be able to get the title because there is Real Madrid which is giant in holding the most UCL titles.
PSG has financial capabilities and is one of the richest clubs in the world. I don't think it's difficult for them to bring in any of the best players in the world. But honestly, I am very grateful for the rules of financial fair play. This rule means that super rich clubs cannot monopolize star players with their unlimited money. Of course they can still use their money to negotiate with any player. I hope they can make a better squad composition next season so they can still appear competitive in the UCL. Actually, the current squad is extraordinary because it was able to reach the semifinals. They even have the opportunity to play in the final. But they will lose Mbappe next season so as you said they must be able to utilize their financial capabilities to get some good players, be they strikers or other positions.
So, this is what is interesting about the financial fair play system, which provides convenience and opportunity for any team to be able to create equality of performance by bringing in players who can be considered the best players.
Moreover, this can also help each team to get players without any difficulties in terms of negotiating prices because player monopoly when this happens can be detrimental to many parties and those who have it get the biggest profits.
It just that PSG, with its huge financial resources, can use it to bring in the world best players.
Some of the best players have had their respective teams with quite long contracts and they are still being retained because their contribution is very important, what makes things difficult for PSG is not about money but about success in convincing the team or player for the transfer.
Several names have been kept by PSG for purchase options at the end of the season, but there is no clear and guaranteed certainty whether they will actually be part of PSG or not.
What is clear is that PSG must prepare everything carefully because preparation for next season is very important.