If you consider the price of gold today vs. where it was at its lowest point over the previous 10 years (USD had most value, just before Trump took office) then gold has gone up 42.76% (meaning the USD has lost considerable value since 2016). You can look at the charts and see when the trade war started with China and see when the Pandemic hit. Even so, since Biden has been in office the USD has been gaining in value (as measured by gold) and given the action of the Fed last week it will gain even more value (in fact that's been the financial news the past few weeks - the USD gaining value). Again this doesn't support the claim that fiat currencies are rapidly losing value.
I'm getting my information on the price of gold here - https://goldprice.org/gold-price-history.html
So, we had at least 4% pre pandemic and now closer to 10-11% (real CPI as reported on shadowstats, is always about 2% higher than the fake BLS numbers) per year though it looks like it will diminish.
That's not a crash, that's more-or-less by design. Currency, i.e. money, is engineered to be inflationary and economists consider the optimum inflation rate to be 2%-4% per year. For the past 20 years we've been on the high side of that target, but we're on target. Inflationary currency encourages investment and spending. Saving currency in the bank is not producing value (there's even a parable about this).
Society would have a lot to gain from a government that didn't default on it's obligation of "money as a store of value". there's a large need for store of value, especially with the aging population.