https://bitcoinmagazine.com/legal/brazil-enacts-bitcoin-payments-bill
I don't see much difference between a country's CBDC and its local currency. Using CBDC is just like using the electronic version of the local currency. These CBDCs cannot compete favorably with Bitcoin because most people know that the advantages of using Bitcoin greatly outweigh the benefit of using these CBDCs. An example is the case of Nigeria where the government came up with the eNaira just to discourage its citizens from using Bitcoin. Instead of limiting the influence of Bitcoin, its awareness and adoption increased greatly and the government began to blame its mass adoption for the fall of the nation's currency. Decentralization, privacy, hedge against inflation, global acceptance, and international influence are some of the qualities that Bitcoin possesses that dwarfs other digital currencies. Brazil can introduce its CBDC but the fact is Bitcoin would still be number one in that country.