We were in a lockdown, and Congress voted for multiple trillion dollar stimulus' financed by debt. Refusing to "print money" in those circumstances is just asking for a worse Great Depression.
A crisis prevents people from earning money. No money means nobody buys anything. Nobody buys anything means no company can now sell stuff, so no revenue. Companies start closing down, so there are even more people who cannot earn money.
The government can print money and inject into the system. Some people have money so they continue to buy stuff but maybe at a slower pace or less amount. Things also can get expensive but it is not a total collapse.
one of the big problems of the great depression was banks went bankrupt left right and centre, and took everyone's life savings with them. Also as a lot of banks generally hold mortgages in their portfolio, so when a bank collapses it means that mortgages all get fucky too.
So the mass printing of money meant that banks didn't collapse.
It also meant that a fucktonne of cash went into the hands of the uber rich.
This is one of the reasons safety nets on savings exist in both the USA and in Europe (and probably other places as well about which I'm less informed). Even so, the tacit understanding is that this is more about preventing bank runs than about the practical effects on the currencies involved because it could very well be that that insurance will pay out in money that is worthless.
