Enrique's strategy will undoubtedly make things difficult for any team they face, and we acknowledge that. Arsenal's defense is a particular concern for Enrique. Speaking of Arsenal's defense, they've conceded only 26 goals in the Premier League this season. In the Champions League so far, they've only conceded four goals. It must be acknowledged that Saliba and Gabriel are formidable defenders at Arteta's disposal. From what we can imagine, the speed of Dembele, Doue, and Kvaratskhelia could pose a significant challenge to Saliba and Gabriel.
So far, throughout Arsenal's matches, Arteta has employed almost no defensive strategy. Arsenal often plays an open game, relying on possession, allowing both sides to play quickly and openly. The slightest lapse in concentration could create opportunities for either side.
I will counter back that Arteta's strategy undoubtedly challenge every coaches and teams that have to play against Arsenal, but our points are all about strategies. There are other things which are very important, players and player quality, which decide how a team can perform well with given tactics from head coaches.
In player resources and player quality, PSG have better players than Arsenal have, and it will be biggest challenge for Arteta and Arsenal players in the final match. It seems like with most positions, PSG have better players than Arsenal and it can make difference between two team performances, then decide the winner and the champion eventually. I believe Arteta knows about it and likely have tactical solutions for it, but it's all he can do as a head coach, the remaining tasks are upt to Arsenal players.