I don't know if I'm comfortable predicting the Arsenal-PSG match. PSG will wear Arsenal out in a somewhat dangerous match this season. Arsenal will play without mistakes and win this match, but as I said I'm not sure what will happen. PSG started to play good teamwork with their new transfers after Mbappe left.
They may be successful in stopping Arsenal's fast play. Since it's a Champions League match, PSG players will want to prove themselves. It seems to me that this match will end in a draw, this is definitely not a recommendation.
It is quite difficult to see which team will be more favored in the Arsenal vs PSG match tomorrow. Because the quality of the game of these two teams cannot be doubted. Both are strong teams in their respective leagues. But we have to consider that the home team could have an advantage. And in this match Arsenal will be the host because the match will be held at the Emirates stadium.
So I might choose to favor Arsenal. Because Arsenal, which looks on par with Man City, really convinces me that they will achieve good results in the UCL this time.