I'm sure Bayern can still put in another different performance in the Community League and it will be easy to beat them. If you look at the strength of Bayern and Arsenal, the real system has strength that is not very high. Arsenal will try to spoil Bayern's time on the board and use the opportunity to win the trophy they play in this season's school tournament through the middle.
Bayern Munich after losing in the domestic league to Dortmund can be concluded that their dominance in the UCL league has ended, their self-confidence is still low at the moment, in contrast to Arsenal who successfully held Man City to a draw in the Domestic league. Mentally they are also quite strong this season, in contrast to Bayern Munich whose mentality has declined. For now, that's what I see in Bayern Munich's match against Arsenal. I'm sure Arsenal can ruin Bayern Munich's game.
The reason is, Arsenal is now different from when they were still coached by Arsen Wenger when they lost twice with scores of 5-1 and 1-5. However, the current Bayern Munich is not the Bayern Munich that used to be strong and always dominated. Now Bayern Munich under the guidance of Thomas Tuchel is below Leverkusen in the Bundesliga league so the chances of qualifying for the semifinals of the UCL league can be said to be almost the same, namely 50-50. However, my prediction is that Arsenal can make new history this season by beating Bayern Munich.