What do you expect them to do? IMF can't control how countries recklessly print their own currency. Ukrainian war is partly responsible, so is the COVID era spending. Don't rely on fiat currency for long term savings. The central banks target inflation to be 2% yearly at best. If you spend fiat immediately, the effects are mitigated. Long term savings over 30-40 years mean your fiat will lose over half its value. Again, that's at 2% -- most currencies inflate at a higher rate.
Money must work so that inflation cannot have such a significant impact on our funds. You are right that over time, inflation can greatly reduce the purchasing power of our funds, so we need to make sure that the money generates income, at least slightly exceeding the inflation rate, and ideally, we need investments that will also bring us income.
So far, bitcoin is able to cope with this task very well. I don’t want to say that you can buy bitcoin now and still make a good profit, although it is, but I still am of the opinion that we have had enough time to buy bitcoin at lower prices. But even those who are a little late with the purchase and buy now, still have a chance to at least double their investments, I don’t know what kind of investment in traditional directions can give the same result.