To get a real answer to this question, we need to "dig a little deeper". First, we need to understand the role of money. The role in an object called the STATE.
We often confuse the simple exchange of money<->goods, thinking that the whole financial system is aimed only at this. And this is the main misconception, assuming that cryptocurrency will replace real money.
In the paradigm of a simple money<->good exchange process, money can be replaced by anything ! For example cowrie shells, glass beads, skins, .... anything that has already been there before today.) But real money in the real economy is not only an equivalent of value, it is also fuel for the economy, it is a mechanism for the realization of state obligations to the population, it and forced manipulations ...
And now the key question, which will allow you to get an answer to the question in the title of the topic, can a decentralized financial system, on which the government has no influence and control, to realize all that realizes fiat, or even CBDC, the financial system of the STATE ?
PS No one has yet been able to outline and describe to me how the economy will work (in the modern paradigm, and in the existing rules and principles) on a decentralized monetary system without controlled emission. Maybe someone can ?

If yes - this person has a great future !