The high degree of centralization and traceability of digital currency will strengthen the ability of the state or regulatory agencies to grasp the data and information of the people, both subjectively and objectively. Human greed and government mismanagement have destroyed monetary policy without exception. CBDC is the same as all other types of fiat currencies because people will get into trouble because of inflation and heavy currency control.
Bitcoin frees people from monetary policy. The central bank cannot put the cryptocurrency sprites back in the bottle, The power of the market in a more open currency selection system will mean that cryptocurrencies are expected to play an important role in forcing these politicized central institutions to better manage their people’s funds. CBDC may also be an opportunity for Bitcoin to help increase scalability and liquidity, it will make Bitcoin more priceless.
I am not sure what exact data will the governments be able to obtain that they can't get to without issuing a coin? I mean, they already have our data from multiple sources so it's not like we can hide that much. The only thing they can obtain is how much someone invested, but I don't know of what use that would be.