The problem with CBDC is that they are actively developing it in a way they intended on rolling it out to the public (they are trying to set up campaign to roll it out) and we would be very screwed if it ever goes live, because it is not decentralized and the authority is controlled by the government which historically have screwed people over repeatedly, just look at civil forfeiture surpassing robbery in USA, they could just do it with a mouse click in CBDC.
Even Yermack points out the risk of political abuse of CBDC and yet they are still going for it.