I believe Arsenal can go further in the Champions League and also try as hard as possible in the Premier League, the most important thing is that Mikel Arteta can always overcome existing mistakes without having to feel pressured because Manchester City will always remain their main competitor. I have seen in the last 2 seasons actually Manchester City is not much different from Arsenal, as long as this club remains focused, then they can break Man City's dominance.
Manchester City and other elite clubs have been amazing and promising in the UEFA Champions League, just a better call for the big winning. Arsenal have everything, the one thing that keeps them up is hope and determination. Mikel Arteta have packed his best strategies infront and there's certainly going to be evidence for the team, it may not be now but in the nearest future, there's certainly full hope and success is ahead.
Last season Arsenal managed to record impressive statistics by reaching the quarter-finals, in previous seasons they were only able to reach the last 16. Unfortunately, their steps were too difficult because they had to face Bayern Munich, which has a better reputation and mentality in the Champions League. Arteta certainly realizes that competing in European competition is much more difficult than the Premier League, and extra preparation is needed to become the best team in Europe. In my opinion, Arsenal are currently just unlucky, they have made their best efforts to achieve the target, the depth of the squad that Arteta has built is also no less good than Manchester City. Maybe Arsenal success is only a matter of time, so they can change history by winning their first trophy.
I think EPL or UCL is the same value for Arsenal right now. They very much want to win both. I want to see Arsenal win the championship for the first time in years. This would be an important championship because the players and technical staff have been fighting for this championship for years. I hope they can win the first championship by winning the EPL this year. Then why not UCL?