I don't think Giroud was the problem, he's a really good forward but he gets very bad publicity... both the press and fans seem to be waiting for Giroud to do one bad thing just so they can call him shit. France wasn't able to create chances because they didn't commit players forward, the back four and the 2 central midfielders never left their own field after minute 20, and it's hard to create chances if you only have 4 men attacking against 8 defenders.
In fact, France didn't even commit numbers forward when they were down 1 goal, that just comes to show how passive their strategy was.
I've been thinking that too. Why was Pogba and Matuidi still holding after Ronaldo left the pitch instead of bombing forward which is supposed to be Pogba's specialty? What's even more glaring is they keep trying to cross the ball to Giroud despite Pepe and Fonte dealing with those easily. Then, they subbed Giroud off for a carbon copy in Gignac and tried the same thing instead of doing something different ( such as subbing Kante in, allowing Pogba and Matuidi to venture forward or using a diff approach like Martial's pace instead of Gignac's target man tactics which failed with Giroud )