Yes, Arsenal are very strong at the moment and the game against Bayern could well prove to be a winnable game for them. So far I don't see Bayern being able to beat them or win the Champions League in general, they have a series of bad games in the context of their home league. But it will be a tough match for both teams either way
It's true, the match between Arsenal versus Bayern Munich is a very troublesome match for both teams. Arsenal is in stable condition, so their chances of beating Bayern Munich are quite open. On paper, Bayern Munich is a team that deserves to be favored based on their experience, they have a better mentality compared to Arsenal in the Champions League. Thomas Tuchel squad can show a different performance in the Champions League, even though they are currently experiencing a decline in performance in the Bundesliga.