It's true that I also see it like that, Arsenal is very superior in the EPL but it seems like they are not that strong in the Champions League. It must be admitted that the Gunners are still less popular than their opponents Bayern Munich, and their glorious history has not at all favored the British representatives. However, this season the hope of continuing to progress is also very open if they are able to take advantage of the situation of the German representative who is not very consistent. I certainly really hope that Arteta can do this and even reach the final round. I really admire the way Asenal has played this season, the collaboration between the players has been great.
Arsenal is actually a better premier league team than in the champions league and it's actually resulting from their style of play and their mentality, the champions league has a whole different way of approach if you must be able to win the champions league or probably get to the finals some day of which arsenal has been there less than three times and that's because they aren't built for it most likely.
For Arsenal to ever get to win the champions league, they will be needing a different coach with a different orientation who can leas them to the Champions league and lift the trophy. Their opponent the German side seems to have more confidence and even experience than they do in that this isn't their first time I'd getting to this point and Bayern Munich ha won the champions league more than twice but I doubt Arsenal has gotten a champions league trophy and that has been the reason for the popularity in the name of Bayern Munich as against that of Arsenal so far in the champions league fixture.
Arsenal has managed to scale through the champions league group stage up to this point where they are in the champions league and very likely this may be the point they may get to end their champions league journey if Bayern Munich get to perform much better enough to eliminate them from the Champions league their season, it's actually going to be a fierce game but at the end one of the must win the game.