If we compare Real Madrid with PSG, maybe it is wrong because in terms of experience and quality, these two teams are different and Real Madrid has become the king of the Champions League. I am not so optimistic that PSG will be able to defend their second trophy in a row for next season because there are many challenges that they will get and also many teams are starting to fix their squads to look stronger when facing competition in the Champions League next season.
Even though now after winning Champions League PSG is also having name into elite clubs but still this compare is not fair because Real Madrid is one of the best clubs in world with strong history and amazing consistency which allow them to have things well under control in all conditions.
Leagues are completely different which make things on another level PSG is having some good players but still they are not comparable with top clubs like Real Madrid having just one big been never give tag of big or anything else they needed to be had something more in coming years because without consistency and having quality it's never been easy. French League is one of the weakest leagues in UEFA while La Liga is having his own mark and their clubs are also had good quality and depth which give them good edge around soccer world this coming season is going to be interesting for PSG.