I well remember what happened in 2008 (caused by government's deregulation by the way, not "technocratic managerialist", whatever it means).
Despite the severity of what happened, jobs rapidly recovered and were around the same pre-financial crisis levels (and well above US averages) in a matter of few years and workers earnings were at or above 2008 levels (inflation adjusted) by 2016.
All in all, as severe 2008 was, I don't see how free market economy made it more, rather than less severe. It's at best an opinion.
"Caused by government deregulation" could also be phrased as "not prevented by regulation, while caused by financial markets".
The rest of the market recovered quickly once the government re-arranged debt and prevented a full collapse.
But the lesson was that private debt was accumulating too quickly on a shaky basis, catalyzed by financial markets making the issue orders of magnitudes worse. Rapid private debt accumulation is still not discussed enough today for my taste.