I admire Arsenal's performance in the Premier League. I haven't anything to say against that. They are even the most scorer team in the league in addition to their being the leader there now.

But we don't see the same team in the Champions League. I assume you would agree with me on that as well. We can't say their performances here so far have been very consistent. We have all seen how much they struggled against Porto. There is still a point that they can benefit from though. Bayern Munich's performance in the Champions League hasn't been amazing either. If Arsenal manage to make big difficulties for their defense then things can get really interesting.
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.
I also share the same sentiment as you guys, arsenal have been playing brilliantly in the premier league, but in the champions league, they have been struggling a bit, which to me, I feels like it all boils down to experience, which they actually lack, and if you look at the historical record of the champions league and teams that have won it and teams that mostly goes far in the competition, they mostly have not just quality in their teams, but experience, which I think is key in the quest for champions league glory, so to me, I believe that Bayern Munich have more in their ranks to progress to the next round of the competition than this arsenal team am seeing, because experience will play a very big role in this match between them both.
Arsenal is not really a team that is used to being at top level, they used to be, but for a long time they weren't that good ,look at the results they had in the past 15 years or so if you remove the last 2 years they weren't all that good. So, when it comes to last weeks of the league or last rounds of UCL, those are stuff majority of this team is not sued to and the result doesn't come that easily.
This is why I think it is quite normal for them to not have anything that will benefit them and may have some stress. This should be the most important thing and that means we can make it work one way or another. I hope that they could have some calm and relax way of playing this year, compared to last year where they lost it in the end.