My guess is that the rent takers and corporations simply realized that with Governments trying to stabilize the economy and paying out Covid support money, the

My guess is that the rent takers and corporations simply realized that with Governments trying to stabilize the economy and paying out Covid support money, the little guys for the first time in decades also got some bounty from the money-printing-bonanza the high-finance and large corporations have been enjoying for the last 13 years. When only the rich guys got free moneys and "invested" it into stocks and buybacks, it didn't make any sense to raise prices. Now that the little guys (potentially) have money in their greedy little hands, it is time to raise prices. You can't have ordinary people with money to save, right?