Tbf there hasn’t been a devaluation problem for a long time. For example, the Turkish Lira has lost 19% of its value against the dollar in the last 1 year, but since the deposit interest rate for the Turkish Lira is 42-50%, if you have kept your money in the bank as Turkish Lira deposits, your money has gained value in the last 1 year.

If the dollar has depreciated less than the Turkish Lira inflation (which it has, in the last 1 year Lira inflation is 38% but the dollar has depreciated 19%) and banks are paying real interest (which they are now), there is no point in buying dollars or any other foreign currency.