> They do create money effectively by loaning out deposits
That's what we're taught in school but it's really backwards. They make loans that they think will be profitable and then figure out how to get the reserves needed to cover the balance sheet (either through issuing equity, drumming up more deposits, or borrowing in the overnight repo market).
Sure, their assets are somewhat fungible in both time and space so long as they meet liquidity regulations.
Regardless, the point is that they can't poof money for themselves like the Fed, or another central bank, can. They can increase the economy's supply of money effectively, but that is different from having direct power over monetary supply.
If they have a deficit on their sheets they can't just create money for themselves like a central bank could.