Arsenal has not won the Premier League title for many years now, and in those years they were not competing for the title. Either Arsenal has missed out on qualifying for the Premier League top four or they will be playing in the European League in the next season. Since Mikel Arteta became Arsenal's head coach, Arsenal almost won the league last season, and Arsenal is also in the Premier League title race this season. There is an improvement at Arsenal now.
Currently, or more precisely this season, after 26 matches played by Arsenal, the team is still in contention for the title because the distance between them is only two points with Liverpool and one point with Manchester City. This means that this season Arsenal are still very good and it is likely that they will continue to improve until the end of the season if the coach can make a good enough rotation of their players so that they don't experience more injuries at the end of the season. But I still have doubts about Arsenal getting the Premier League trophy this season.