Except we're talking about currencies here, because they are meant to be traded, not stores of value. It's impractical to buy bread at the bakery with stores of value like real estate or gold.

And since we're off-topic anyway, there is no global fixed inflation for everyone but each currency has seen a completely different value of inflation, and USD inflation is far lower than most other currencies that saw proper inflation.

You're far far better off having your savings in USD than Turkish lira or Argentinian pesos or Russians rubles or even Hungarian Forints. USD inflation is a joke in comparison.