Has the binge really helped the economy, or just asset prices?

Since the start of the pandemic, central banks in the U.S., Europe and Japan have been on a $9 trillion spending spree.

That binge has turned the U.S. Federal Reserve, the European Central Bank and the Bank of Japan into the ultimate market whales, swelling their combined assets to $24 trillion. 

https://www.bloomberg.com/graphics/2021-central-banks-binge/