The match will be balanced and exciting, but Arsenal has a good chance if it avoids defensive errors. PSG relies on Mbappé's individual performance, making its chances of winning slim compared to Arsenal, which relies on the consistency of play among all its players.
Sorry but you got this wrong, you have forgotten that Mbappe is no longer at PSG but now Real Madrid. PSG are now more of a team that plays like Arsenal, team football dependent on its players and not just one person.
In my opinion, Arsenal has seen significant improvement under Mikel Arteta, with a balanced team between attack and defense. Meanwhile, PSG's defense isn't always at its best, especially with absence of Marquinhos or individual errors.
Arsenal has won them once, but doing it again can be a challenge with a key player of that in midfield missing also.