It could be said that with Bayern Munich's frequent failures in the domestic league, their chances of winning against Arsenal are decreasing and I think Arsenal with their consistency can bury Bayern Munich's hopes of going further. Of course, the Gunners are very confident with the instability of Bayern Munich so far and they will definitely try as hard as possible to get a win in the first leg.
I know it's not an easy job, especially since the first leg took place at Bayern Munich's home ground. But at least if Arsenal knew the weak points of Bayern Munich's defense then they could steal the aggregate lead first. If this can go well then it is not impossible that Arsenal will break the bad record in history when facing Bayern Munich. It might be a bit naive if we don't discuss this clearly, but Bayern Munich can't do much this season, especially in the Champions League.
The Bundesliga and the UEFA champions league are two different competitions with different approaches from the club, I don't think Bayern's failure in the league can hurt their hopes on progression to the next stage in the UEFA champions league, Bayern have been champions of Germany for more that ten years in a row now, but in those ten years how many times did they conquer Europe I think it's just twice, so the form of a team in the two domestic league and in the UEFA champions differs,
Most teams use the champions league to safe a disastrous season, just like we saw Chelsea do in the 2021 season, when they where performing badly in the premier league but won the UEFA champions league that same year, winning some big teams along the way most especially the premier league champions Manchester city in the final ,
It's going to be tough for arsenal because the first leg is at The Alliance area in Germany and if Bayern should take full advantage of it and win the game by a 2-3 goals margin it's going to really be hard for the Gunners, the only way arsenal can actually stand a chance of progressing is by drawing the first leg at alliance area in Germany and then using the Emirates stadium to its advantage to win the game,
I see Bayern going through this one, arsenal is a good team, but when it comes to the UEFA champions league it comes down to experience from the players and the coach, I think Bayern Munich has that experience and even the Bayern coach Thomas Tuchel has that experience, as he has already won the trophy In 2021 after the disappointment of 2020 when he led PGS to the final but lost to Bayern Munich.