I actually have some Ripple from the giveaway.
I missed that, but collected some Stellar. Sold them long ago for bitcoin.
On an issue like this, which doesn't involve the USA directly, I think even the allies could go their own way.
I'd expect the UK to implement a CBDC because it's an easy way to unperson someone. France, Germany and maybe Italy also seem possible candidates.
The UK might do as they please, and maybe they will. On the other hand, France, Germany or Italy need to sway the ECB or it's a no go. And if/when it happens, the other countries in the Euro will have to accept the resulting digital currency, which means let their citizen use it (or force them to, more likely). There is some pressure to do so. The ECB appears to hate bitcoin more than other central banks - see some of the papers published by a few ECB folks. A digital euro may help "solve the bitcoin problem". My opinion is that the USA (or the new president) won't care much or at all.