In my perspective, when I see Bayern Munich against Arsenal, I am not happy because it will be extremely difficult for Arsenal to get the chance to overcome Munich in the Champions League. This odd they give arsenal if the match is close now they will give arsenal a big odd more than Bayer Munich, since arsenal are facing Munich they have not had the chance to defeat Munich, but I don't know for this season if they will have the opportunity to defeat Munich, in terms of experience and quality arsenal will be defeated because Bayern Munich used to qualify for the Champions League every season and Tuchel is a very talented coach more than Arteta because Tuchel win more trophy more than him.
Although that arsenal match vs Bayern Munich will be very tough match, I agree with that but give that it will be difficult for Arsenal to get the chance to overcome Bayern Munich in this champion league I don't believe that. Because with the arsenal performance currently now everyone know say arsenal are capable to beat any team they meet with arsenal can definitely have a high opportunity to defeat Bayern Munich in easily, even though that Bayern Munich always qualify for the champion league every season, should know that this season it will be very difficult for them to qualify.
Am just waiting for this match arsenal vs Bayern Munich because I can't predict anyone now, because odd deceive something so I will let they should play the first leg before someone can know the real club that can win the game and qualify to semi finals this season.
I think is better that you don't want to predict the match early since no body know what is going happened, but with the old that gives to arsenal they really deserve the old because they know what Arsenal can I'm very sure that they can try as much as possible put much effort and bring out a positive results against Bayern Munich. Arsenal can definitely dominate this first leg for them to advance to the semi-final.