His PSG showing is not really new, we've already seen similar over the years with Argentina. At this point the evidence does point more strongly to him simply not being as comfortable outside the Barcelona setup he grew up under.
Under Argentina it was all blamed on his coaches and teammates, the same with Barcelona as they started to wane in Europe. And a similar thing seems to be happening already at PSG.
Both are correct statement.
Last season in Jan of 2021 Barcelona in the league were 12-0-0, 6 clean sheets, 9 goals conceded in 12 games, without Pique, Koeman finally found a system, form + chemistry the second Pique came back they're record was 4-3-3 with 3 clean sheets 15 goals conceded in 10 games. In Pique last 7 games Barcelona posted 2-2-3 record, which saw them crash and burn. This was down to the manager, 100%.
Ronaldo we hear a lot from his fans his time in Juve was down to aging or poor players, poor coaches likewise United etc. or Portugal who may not even make the WC is down to Santos, but people act like when it comes to Messi it's his fault?
Ronaldo has been coached by Sir Alex, Mourinho, Ancelotti, Zidane and Allegri, while Messi? Pep, Rijkaard, Enrique, Tito, EV? Considering most believe Messi made Pep career, Messi has never been coached by a truly elite manager, yet look at what he achieved? Imagine him with a proper elite manager? Who improves the team around them gets the better of players and helps player adapt as Ronaldo has, are people going to act like Sir Alex, Mou, Ancelotti, Zidane didn't put Ronaldo in a good spot to succeed compared to Setien, Koeman, Tata, EV, etc for Messi
Pep and Enrique are the only manager to put Messi in a good spot to succeed and we all saw what happen difference is Messi was on a handicap in terms of coaches compared to Ronaldo.
I'll end off with this Dias is one of the best CB in England and ESPNFC ranked him #1 out of a list of 100 defenders a few weeks back, with his performance the last year and a half, BSilva is considered one of the best players in the PL and is giving Salah a run for his money, while Cancelo is considered as the best FB in the PL and Europe, while he plays as a LB when he's a RB
Why can't they seem to help Portugal? Because at club level there coached by Pep who helps them adapt while bring the best out of them, while international there coached by a dinosaur. No matter how good players are managers make a big difference also, even for players like Messi and Ronaldo.