In short, from a pure technology and user experience standpoint, using blockchain for a CBDC is bonkers. CBDCs should instead be based on a traditional centralized architecture.
That's 100% correct.
Still, some
may try to use blockchain, not necessarily as technology, more as a buzz word for the masses that will not know nor care if a blockchain is actually used or not, but may believe (with enough money pumped into newspapers and other advertising) that those CBDCs "are like bitcoin".