Again, that's simply not true. You can't point to a single instance where CBDC infrastructure has enabled or improved wholesale international payments that were impossible or otherwise costly to do before.
Give it until the end of the year. These systems are new. Legal and logistical frameworks are being created around them. Southeast Asia will have a streamlined import/export relationship with Japan by the end of the year. Where it goes is from there is anyone's guess, but there's a lot of momentum for this to be the first of several major events over the next 2-3 years.