Yes, that's right. We shouldn't underestimate PSV because this team has beat Arsenal in the last match when they met. Although that is in the Europa League, but at least PSV currently has good experience when playing against Arsenal. Also PSV has a solid defense, and yes they target will make an effort to a draw result in their first match against Arsenal later. Although to be honest it might be difficult, because Arsenal performance is also getting better and they also will try to got full points in that match.
Arsenal made very strong reinforcement on their team in the transfer window, they will be more difficult to defeat this season than last season. The have a very strong player in Defensive Midfield position who likes to control the midfield, that is Declan Rice and he is a new player in the midfield of Arsenal that is doing well, and even scored a great goal already to improve his confidence. There is also Havertz for them, many football supporters consider Havertz to be a player with a better performance in the champions league. Arsenal also have good competition in goal, and in attack, so any player who have a chance will make sure to do well.