I think Real were better prepared to face PSG, but they failed defensively, so Chelsea can take note of that and try to play better at the back. Although it is extremely difficult to hold off PSG’s attack right now, and I am sure PSG will score. A PSG win in the final would be a logical conclusion to a good season, and I believe no one doubts now that they will rightfully be considered the strongest team, while Chelsea are far from their optimal form.
If Chelsea follows the rhythm of PSG game, the Club World Cup final will be like the Champions League final. where the match was one sided.. PSG currently have the ability to beat any team, and beating Chelsea should be easier than beating Real Madrid. There's no doubt about PSG current form, they're likely to win convincingly again.
Enzo Maresca will likely rely on a defensive strategy to contain PSG attacks and capitalize on every opportunity to counterattack. It would be surprising if PSG lost, as they are heavily favored on paper.