Yeah this is not really what’s happening. QE went on for a long time before inflation really took off and mostly served to inflate asset prices without any meaningful effect on the price of consumer goods. As has been said, this is because that’s where the lion’s share of rich people’s money goes.

I think the key data point here is the increase in profits recently. Which would not be happening if this was all down to bog standard supply and demand throughout supply chains. Parking money in assets like stocks and real estate doesn’t cause consumer price inflation. But if businesses all realized that the talk of supply chain disruptions and COVID causing prices to go up was a good excuse to raise prices further together, that would exacerbate an otherwise minor bout of consumer price inflation. Which is exactly what happened.

And although it’s pretty damn close to collusion/price fixing in many cases, there is no real enforcement against that sort of thing. There is software that is used throughout industries that basically does the price fixing for you using data from other users/firms. Makes it easy and plausibly deniable because it was just an algorithm that told you to do it. Big part of rent inflation in particular. If there’s no competitor willing to undercut you, even though they could, the Econ 101 bullshit doesn’t really apply. It’s basically just class solidarity among capitalists. Circling the wagons because unusual circumstances temporarily drove wages up, and they weren’t having it.

Anyway, the main point is, if profit rates are going up, it’s not money supply causing the inflation.