Isn't this what Ripple/XRP is intended for? I always wondered why the banks wouldn't just create and own their own network instead of relying on a 3rd party like that.
"Banks see an opportunity for stablecoins to speed up more routine transactions, such as cross-border payments that can take days in the traditional payments system."
Ripple provides both messaging and settlement with XRP
Gas fees would skyrocket and expensive again