Not sure I'd agree that QE had "put off" inflation. The outbreak of inflation was almost entirely covid related - constant supply chain disruptions combined with changing consumer habits made it difficult for the supply of products people wanted to be available when they wanted them. Lockdowns also reduced expense (no vacations, no eating out, no movies, fewer miles put on car) which even without stimulus increased disposable income for people who remained employed. In the US at least corporations were making record profits as inflation peaked, showing that a lot of them were taking advantage of real inflation in other economic sectors to raise prices.
The disruption to the way people work, the difference in treatment between "essential" employees who had to come in to their jobs versus those able to work from home, and the reduction in the workforce that resulted especially in certain sectors has given employees more bargaining power for wages which have seen a meaningful increase in real terms for the first time in a long time for those in the bottom half.
The fact that consumer spending is still at very high levels in the US compared with China where it has decreased in a rather significant way is telling about the difference in the two. Both experienced covid induced inflation, but in China that inflation is already gone and producer prices are now falling - due to that lack of demand not only domestically but due to a rather dramatic drop in exports (for a variety of reasons)
So while the US is reducing the money supply (the opposite of QE) in addition to increases in interest rates to try to rein in inflation (it is down a lot from the peak but still higher than the Fed's 2% target) China is likely to need to increase their money supply to avoid deflation. The problem is that in order for increases in the money supply to do any good they have to be deployed in the form of loans. That's why QE in the US didn't increase inflation despite dire predictions it would - that excess money wasn't getting translated into loans that went to productive work. It was getting sopped up by Wall Street and inflating the price of assets like stocks, houses and startup companies.
In China there is no massive financial sector that can sop up an increased money supply, so it will either sit on the sidelines and do nothing to help deflation or it will go to more bad loans. More bad loans are "good" in the short term if they prevent deflation, but obviously makes for bigger pain in the future when the reckoning comes.