Central banks can't print money nor can they influence the quantity of money in the economy. The best they can do is raise the interest rate which denies people the ability to borrow.
I think this is entirely dependent on the country in question because rules around central bank operations are very different in different parts of the world. Some can directly create money and some can even seize assets.
Note that if Central bank digital currencies are allowed then Central banks will most certainly be able to influence the currency in circulation with much more power than they currently do.
Note that if Central bank digital currencies are allowed then Central banks will most certainly be able to influence the currency in circulation with much more power than they currently do.