At the end, especially in extra time, that was definitely the case. And, it's true that they didn't manage many real attacks. OTOH Arsenal couldn't break out of that horseshoe either. The XG graphs suggest that even though they weren't getting a lot of high quality chances, they were getting enough low quality chances continuously throughout the game that a breakthrough eventually was expected. Meanwhile, Havertz scored on an extremely low XG chance. That was Arsenal's only shot on target all game. There was also one miss, and 5 blocked shots. That's it for 120 minutes, and includes the attempts from set pieces too.

120 minutes and 1 shot on target is pretty poor.