The difference, is that the CBDC will be even more centralized. To control currency flows requires the participation of many separate entities. With this new 'digital money' it requires only the participation of those who control the blockchain. ie political policy can be achieved programmatically, by having complete control over all currency transactions in a nation. This is very different from the status quo. It should be noted that cash will soon be eliminated.

The potential for abuse here is enormous. If you think shadow banning is problematic from a free speech perspective. Imagine being silently shadow banned from your local grocery store. Imagine not being able to donate to a particular cause/political party. Imagine not being able to give a friend in need financial support because their social score is too low.

People have no actual freedom without economic freedom, and this system will create a sword of Damocles that will hang over each and every person.