It happened just after the first issue of $4tn, the equivalent of $10K for every person, including even all children, in the US. That was a seemingly outrageous amount of money that no-one could pretend might ever be paid back, and it continued, month after month for several months.
Also in the news at the time was Robinhood, the trading app that provided access of everyday people, non-investors, to market trading.
By that, they were trading, with the little free money they had at the time. Since the money appeared to be free, and sustained, psychologically, they were trading with money they didn't care about losing.
Another thing we saw at the time was shares in good but technically bankrupt companies soaring, like Hertz (which is now seems to be back in solvent business).
The people were voting, by donating, towards the things they saw as valuable, just like the rich do, rather than the things they thought might make money.
The courts in the US even changed the law to allow shares in bankrupt companies to continue to be bought, and traditional profit driven investors ran for the hills crying foul, something had "Gone wrong" with money, in their opinion.
But Robinhood has since been nobbled, presumably by those who want to keep everything under control - those holding all the capital.
Sorry rambling explanation, but hopefully that clarifies why I believe the money was free, and has to go free, in keeping with the new energy source of humanity, which is solar energy.
We even see free money being created in the form of proof of work tokens, on human created trees, when things like Bitcoin are solar powered, money-as-sunlight, which is being exchanged for ever more money-as-debt, which traditionally represents capital, which is just stored energy.
So we see money representing work in progress, is more valuable then money representing work done.
Again, sorry for rambling, but it all adds up to a very simple picture, we have to, and are switching to solar energy, away from the capital energy of our planet, and that means the end of value of all capital, including the money representing it.
Even the inflation we are seeing fits with the whole picture, like just another piece of the jigsaw puzzle.