While infact, Arsenal have not managed to advance to the UCL final this season, Arteta has once again failed to bring his club to lift the trophy, for the umpteenth time. Arsenal Lost to PSg with aggregate 3 - 1.
Arsenal are just being themselves. Giving their fans a silver lining in a tournament and failing them again and again...

I don't know what's going wrong with them when they get close to a trophy honestly. The same thing happens in the Premier League and now the Champions League too.
They have a beautiful squad. Arteta is actually not a bad manager. Arsenal were much worse before he came. Maybe completing the last piece of the puzzle (a reliable CF) might be the key?