OP is trying to let you know that PSG is a good clubs that has world class players,imagine the two rival in the world cup which is Messi and Mbappe are both playing in PSG presently and they are the ones on peoples lips about their brilliant performance in this world cup. They were also the two challenging themselves on who will be highest goal scorer. This is reputation and shows the quality of PSG.
I have also thought of this myself when I noticed it and all I could do was to give PSG kuddos for having these great players in their club. PSG are presently inform and only Bayern Munich is the challenge which they have. Superstars have also played in PSG likewise Real Madrid.
I think op, is really just trying to point out that Lionel Messi has joined the list of psg players that have won the world cup. Although you are right that psg has good class of players and individually these players have achieved enough in their football careers but the main point here is that all the above mentioned players won the world cup after they sign and played for psg.
But what baffles me most about this psg club is that with all the great players that have played for psg, they still haven't won the uefa champions league which is truly a dissapointment for such a big club like psg.