Fiat money is just a piece of paper or steel alloy that has a way much lesser value than those precious metals like gold and silver the only thing that keep us holding and using it is the trust the government has put into it so we can use it as a store of value. I don't know much about inflation but I think the best thing to do to prepare for it is to hodl assets that are inflation proof like cryptocurrency, precious metals and I think real estate is good as well.
I agree with what you said, it's better to save a lot of assets in currencies that can withstand inflation, increase assets in precious metals, gold jewelry and have assets in crypto, because now fiat money is very low in price, just 100 thousand is now no longer meaningful, Now that prices continue to rise, our economy is increasingly screaming about inflation, so from now on we have to save lots of assets in the form of precious metals and crypto assets which later when we need them we can exchange them for fiat money or rupiah.