Clearly the Fed mostly. We'll see it once the supply chain issues go away, but high prices stay high.
You also can't cherry-pick a handful of things that have gone up a lot and then assume that it applies to everything. Some things have gone up in price, others haven't. Inflation is sitting at about 6%, which after a decade+ of sub-2% might seem like such a shock, but it isn't really a big deal.
This is the one aspect I feel like most people gloss over the most. Most people I graduated high school with are dual income households.