Anecdotal and very much "impressionistic" but for me I can look at 4 consumer products and cannot think of a good reason that loose monetary policy would really be driving demand for: auto tires, black stainless steel dishwashers, brake pads and toilet paper.
My dishwash broke maybe 8 months ago. When I go to stores to look into replacements I'm still getting a story about "we don't know when ...".
I wanted to have replacement brake pads for my car as I will be taking it in for the safety inspection and orders both front and rear from Tire Rack. I got a call from them a bit later telling me they could only provide the front pads and wanted to know if I wanted to wait to get both together, have the fronts sent and revise the order to only front or to cancel or what. While talking with the rep I asked if this was a model issue or more general supply-chain related. He was very clear that it was not just my car's model that was the problem. We also talked a little about tires. Perhaps one of the be quotes from that might be "We will order 3000 tires and when the delivery arrives it's got maybe 300."
In the past week I was thinking I should buy another large pack of toilet paper now the supply from early (and kind of cheap type) purchases when it was a big deal were running out. Those shelves at the store I normally shop are pretty bare and only the cheap brand. That seems to have been the case for the week. Might change so....
So I can see that some of the price inflation that is attributed to the supply chain shock is probably due to monetary and fiscal policies I would suspect that is not the major explanation.
How much is the fact that most things are produced in China, and China was hit hardest by the pandemic?
(I mean, even things not made in China sometimes have prerequisites made in China.)