Questions about economic policy post-Great Recession

Hello, I’ve been interested in the Austrian school for a while now. I understand that it opposes most forms of government intervention in the economy, but I do have a question about the policies of Europe and America post-Great Recession.

My understanding is that after the Great Recession, a lot of European countries underwent serious austerity measures to react to the crisis, while America mostly enacted expansionary policies to counteract the downturn. It is also my understanding that, comparing the two, the United States has don’t significantly better than Europe economically in the years since the policies were enacted.

I’m just wondering if perhaps it’s due to other factors or maybe that conception about who did better is completely wrong. Any response is greatly appreciated.