That last sentence is rather valid. The US alone has been pumping trillions after trillions into the US and global economy, which has not resulted in general official inflation. But that money went somewhere, and it went into corporate coffers, financial houses, and the private pockets of the wealthy who are all "investing" it like it's not their money, which it isn't really.
I am not sure, but it does not strike me that there is another example of the current type of scenario in all of humanity's history. It's not like the lead up to the 1929 market crash because there are no margin calls since the government just gave away free money and even paid the wealthy and their shell organizations, aka, corporations to steal even more money. It's just unimaginable amounts of money sloshing around in the global market without anything productive to apply itself to. It doesn't want to construct residential in the US because that would depress prices and rents, it keeps being pumped into land and real assets and maintaining artificial housing and rent prices, ....
Although I think there is a great storage of inflation just barely being held back by a policy dam, if that dam doesn't break, I think the outcome, the effect will be a social one. Desperate regimes of the wealthy paranoid about losing the wealth they looted will resort to ever increasing repression to assure their Precious remains with them and their heirs for generation after generation.
Progress is made when there are constraints and problems need solving and things need improving. But what happens when we are all essentially trust fund babies that have no parameters, no limitations, losses are meaningless because it's not money we earned, and "success" is easily seen as such because it is measured by state rather than delta. By all current measures, if you have a successful business / economy no one really cares that you essentially bought the facade of success with your undeserved trust fund / made up money. We can see the effects on the poor, where the impact of our policies are being felt in silent suffering. I suspect the result of at least the last 10 years of policy will be an era of impoverishment not seen in 100 years in the USA in the short term, and another era in human history of stagnation and eventual oppression as humanity turns in on itself if the unearned, and unwarranted wealth is not recalled. Ultimately, what wealth, i.e., money is, is a relative measure of power and especially the US government gave the crooks that defrauded us and almost destroyed America the keys to the vault.