Not only Arsenal, but all clubs' targets are to win their domestic title or perform well in their domestic league. The UEFA Champions League competition is one of the most difficult competitions to play, and you are not certain of winning the UEFA Champions League trophy because you will be playing against the best clubs in the European leagues. With the good performance that Arsenal displayed this season under Arteta, they will even perform better in the next UEFA Champions League competition than the way they did this season because Arteta will likely strengthen his squad before the next UEFA Champions League competition starts, and that will help Arsenal perform better next season.
The domestic league and the champions league have different atmospheres in their competition, so far many club clubs that have performed impressively in the league and are filled with many stars still fail to compete in the champions league, to be able to compete in the champions league of course a club must not only have a qualified squad, but also must be supported by mentality, Performance and consistency good enough to be able to overcome every hurdle that exists from the best European team playing in the Champions League, last season we admit that if Arsenal have grown rapidly with Arteta, Arsenal have shown a significant improvement in the performance of their squad and are able to become Premier League title contenders.
The ability possessed by Arsenal today certainly gives great hope to its fans to see Arsenal can return to glory like in the past, but I personally am quite confident that Arsenal will be able to remain a title contender in the English league, but for the Champions League, arsenal it seems that they are not quite capable of doing so, there is still a lot that must be fixed by Arteta in order to be able to make Arsenal can compete in the Champions League next season.