Half joking take : what "saved the world" (the deal is hardly done, unfortunately) was a mix of technology, incredible dedication, and vast amount of printed money.
Would medtechs have succeed if they were not sure governments would pay "whatever it costs" for vaccines ? Not sure.
Would people have paid Disney+ without government help funds? Maybe less.
2020 was probably better handled than 2008 here.
However, I'm conviced the healthcare workers would have made their insane efforts no matter what the policy ; and the governments might have failed them so far. We'll have to do better for them next time - they saved the day, in the end.
So, now covid 19 is on the list of examples (like Manhattan, Apollo, etc...) where "printing unlimited amount of money to have dedicated people solve a problem" worked.
When do we start doing that on climate change ?