Maybe the tension you mean is between Arteta and Aubameyang?
I think the tension is now over after Aubameyang departure to Barcelona, indeed Arsenal still have a chance to reach the Champions League zone, but I don't think it's an easy thing for them because now they have a fairly limited squad, and it's not an easy thing for Arteta to be able to stabilize arsenal game if only relying on the existing squad as it is today, Seeing the condition of arsenal which lost many players in the transfer market and they did not bring in any players this season, I think arsenal will again fail to return to the champions league next season.
Such is the cycle of Arsenal's journey that always fails to reach the target because their goals are often sent when the transfer window opens. Until now Arsenal will continue to try to print players who can fill the void. Regarding the feud with Arteta, Auba deserves to be sent to Barcelona. Arteta can more freely manage his players. Good decision, but with the consequence Arsenal are in a floating zone.