To the degree that printing money by reducing interest rates and perhaps causing a bit of inflation, it basically punishes hoarding of cash by taxing it at the inflation rate (plus the opportunity cost of having near zero nominal return in savings accounts). So that does force the original wealth into circulation. But it’s true that the Fed’s monetary stimulus is likely to be less effective at providing liquidity to individuals than direct fiscal stimulus like the stimulus checks people are getting. (Although it’s not all stimulating because many are using the money to pay off debts.)