Tbh I think everyone looked up for a fight until the penalty. After I don't think really anyone did. I'm not sure why Theo and Ox are being singled out except for the fact that they were just better than Giroud, Alexis, Ramsey, etc. (Xhaka was quite good in the first half I thought) And given that Giroud is Giroud and Ramsey is Ramsey and Alexis was playing to the left of Giroud where he's chronically ineffective, that's not really so surprising, except for the fact that Ox played well.
Though tbh it was a pretty typical Theo big game performance. Looks a little bit more angry and motivated which the fans like, and which is normal in a big game. Movement is quite good as it usually is. Technically and decision wise (didn't make the pass for obvious second goal, poor control when he was played in by I forget who) frustrates except for one moment that sticks out