That's the wrong focus. No striker besides Griezmann really stood out and that's the whole point. Giroud scored 3 which is joint second but his play is complimented Griezmann's style.
Don’t get me wrong, I love Ozil. I think he’s a magician. But I just don’t think he’s playing in the right position. The reason Giroud’s had such a good tournament is because he’s had Griezmann playing just off him, the perfect partner for him to do what he does best: hold up the ball, bring others into play and lay people through to score – generally being one of the least selfish strikers going, not the main focal point for scoring goals. Arsenal’s problem is that Ozil doesn’t compliment that, he can pick a pass like no other, but doesn’t look to drive forward and score goals, sometimes even annoyingly so when he seems to look to set up a teammate even when perfectly placed to shoot. This for me is a big part of why sometimes we just can’t break teams down.