Only in the secondary market. In the primary market they require different types of money for settlement.
If you buy an AI issue, then the AI company has the bank deposit and the bank still has the matching reserves needed to buy government bonds in the primary market. All that changes is the ownership tag on the bank deposit.
If you buy an AI issue, then the AI company has the bank deposit and the bank still has the matching reserves needed to buy government bonds in the primary market. All that changes is the ownership tag on the bank deposit.