What? What do you mean?
Even if these projects will be successful in the future, there is really nothing to gain from them. So why focus your interest on them? If you have $1,000 worth of a CBDC coin, it will remain to be $1,000 in the future. That's because a CBDC is a stable coin, because that's a fiat coin. That's issued by central banks. There is really no growth in them.
The hype of DEFI has waned down already. The current trend is more on NFT.
do you know what I mean ?
There's no need to theoretically explain it, and I think you're not really understanding it at all.
Seems like very few projects pursue this field and make you show it as 1

I found some projects like
https://hedera.com/ do your research and see for yourself how you understand it, and I don't want to argue with someone who doesn't understand it.
"The hype of DeFi has waned down already"... That is an interesting observation. I am also relatively well involved with DeFi and NFTs, financial success of these digital assets is not only about hype, it is about fundamental development, innovation and progression that will pay off in the long run. There was no hype around Bitcoin every now and then, but where is Bitcoin now? Did NFTs take away attention from Bitcoin? If yes, how?
DeFi is growing at an incredible pace and so is the NFT space. No need to talk one down in order hype another one up. These fields will continue to grow.