Myanmar scenario was like that but the tech chosen for the CBDC couldn’t deliver, mostly speed wise. I think the requirement was to be able to “airdrop” money to the population almost at the same time and the centralized ledger solution couldn’t deliver. So they went to USDT.

Cointelegraph

Myanmar shadow government declares stablecoin USDT an official currency

The incorporation of Tether as an official currency for local use is prompted by privacy concerns and the seizing of funds by the current regime.