Trump has certainly heard of mBridge. He threatened very early on that he would put 100% tariffs on any BRICS nations who start using any alternative to the 'wonderful' USD.

https://www.bbc.com/news/articles/cgrwj0p2dd9o (2024 Dec 2)

'Trump threatens 100% tariff on Brics nations if they try to replace dollar'

"We require a commitment from these countries that they will neither create a new Brics currency nor back any other currency to replace the mighty US dollar or they will face 100% tariffs and should expect to say goodbye to selling into the wonderful US economy,”

China has been developing mBridge for many years and its now operational. They are for obvious reasons not making a lot of noise about it but its also no secret. It is however a huge, deliberate and direct challenge to USA, USD and SWIFT hegemony.

Dalio is right of course the transition is likely to be gradual ,as it usually has been in the past, although the current situation is quite different from the transition from British to US hegemony, where the transition was fairly smooth as it was between two allies...

Hopefully this current transition which is just beginning, will not be too disruptive, but I wouldn't count on it.