PSG is owned by a wealthy man the team has never lacked financial support from the owners and when they were hungry to win the champions League they signed Messi, Neymar, Ramos and they had Mbappe in one team. They have a good advantage to win one trophy each season and now that they have won the champions League for the second time they have made more money and it should be enough to finance the team and the new players they want.
As you know PSG is owned by a wealthy man, so even without PSG winning the Champions League the man that owned PSG is very much capable of financing the team and the new players they want, but it's good that PSG won the Champions League because the man that owned PSG want his club to be among the clubs that won the Champions League.
This is something that every team wants to achieve, but their management people spend according to their own property and those who are in the management of PSG spend more so that their team gets stronger and wins this title and their demand is high. Although, if we consider this, PSG has acquired quite good and strong players and thanks to this they are successful in the Champions League and the French League. PSG has had a strong dominance for 2 years and they will also put weight on other teams in this effort and struggle. Their thinking is quite good according to this because PSG has to be included in the strong teams of the world, for this they have less than all the league titles. They will win some titles this time too so that their history is better and stronger.