The main "benefit" I've seen them tout regarding CBDC is speed. That everything will happen instantaneously, because while it seems finances are instantaneous now checks still take time to clear, financial institutions still take time to move money, credit card charges live in pending for a few days.

However everything will be more centralized, yes they can control us now but there are multiple banks, credit unions, people with cash on hand etc. To completely unperson someone from the financial system is still difficult and can thus only be done on a per person per institution basis and not every institution is completely on board (mostly smaller ones).

With CBDC they can completely ban people from the entirety of society with ease. Control by the elites will be upped even further because it will only take one flag and one push of a button. They can easily make it so you can't save also by giving your CBDC expiration thus enforcing that you will own nothing. There are endless ways to abuse this that couldn't be done now.

Now it's possible the entire reason this is being mentioned so much is to distract from something else or build up the fear, but it would represent a much tighter grip of control over people