We cannot deny because for now even though Arsenal are a very good club but for Champions League matters it is clear that they are just an ordinary club that does not have any advantage in the championship competition but that does not mean they are bad because they are still in the Champions League zone it proves that they deserve to be there but not to be champions because seeing from their golden era even Arsenal always failed and their best achievements were only finals and runners up.
The Champions League is filled with great and great clubs in all the best competitions in Europe and it is very difficult for clubs like Arsenal who do not have any experience in the finals to compete because in the end even though Arsenal are currently a great club but in fact there are clubs that are even greater than them in terms of mentality, experience and club strength.
After all, so far under Mikel Arteta's tutelage, Arsenal has focused more on its Domestic League than the Champions League. That doesn't mean they don't want trophies in this competition, but in order to remain consistent on the right track Arsenal chose to focus on their Domestic League competition. Apart from that, the competitors in the Champions League are very diverse with the depth of their respective teams. So, to stay on the right track, that's why Arteta doesn't focus too much on the UCL competition. Just imagine, just to compete with Manchester City in the Premier League, Arsenal has to use all their abilities and put in a lot of effort. If their focus is divided, then Arsenal will quickly run out of energy. however, if we look at Arsenal in the last two seasons. Arteta has built a fairly solid foundation on his team. he just needs to bring in some newcomers as the team needs, maybe after that Arsenal can become even more competitive. and it is not impossible, if Arsenal is able to win the Premier League trophy, their next target will be the UCL. although, not a very easy task.