Why would a digital Yuan (or some other national currency turned into a CBDC) "help fast-track international settlements" in that currency? I'm trying to understand the basis of this claim

As the main mode of transaction in the world's second biggest economy, China's currency should be a natural contender for the spot. However, the U.S. dollar still accounts for 88.3% of all international settlement transactions while the renminbi has only 4%. Digitization of the currency will help fast-track international settlements using the currency and help make it more popular among international traders.

I guess it might actually depend on the technical form the CBDC ('digital Yuan' or whatever) actually takes. Presumably, if it can be stored abroad without any bank account, i.e. just a digitally (and possibly chain-)signed certificate, then this (storage part) may be easier.
But it still raises the issue: how does e.g. a US consumer get their hands on digital Yuans with which to pay something that they buy directly from China (e.g. via Alibaba)? Any exchange that would sell those digital Yuans that would have to take dollars in, no?
I'm guessing that it has something to do with 3rd party countries, e.g. someone in the Eurozone could just exchange euros for digital Yuans, is that the gist of it?
How China Influences the U.S. Dollar
https://www.thebalance.com/how-does-china-influence-the-u-s-dollar-3970466

For export transactions to United States companies/consumers, Chinese firms typically receive dollars as payment for their exports. These firms then deposit the dollars into local banks, in exchange for yuan, which can be used to pay their domestic workers and vendors. The local banks then send the dollars to China's central bank, the People's Bank of China (PBOC). The PBOC holds the dollars in its foreign exchange reserves and regularly adjusts these reserves by buying or selling dollars via foreign currency markets in exchange for yuan.
By stockpiling dollars, the PBOC reduces the supply of dollars available for trade, putting upward pressure on the dollar and downward pressure on the yuan. By selling dollars, the PBOC effects the opposite result.


It is important to note that the PBOC does not sit on cash reserves. It uses the dollars it accumulates to buy U.S. Treasuries, which are safe-haven assets that provide some incremental return over cash.

The Same Problems Plaguing the Yuan Will Plague China's Digital Currency
https://qz.com/1899402/why-chinas-digital-yuan-wont-internationalize-the-renminbi/

Because the digital currency is little different from the yuan itself, it will on its own “not be a game changer that elevates the renminbi’s role in international finance,” wrote Eswar Prasad, a professor of trade policy at Cornell University, using the currency’s official name. “After all, the Chinese government still restricts capital inflows and outflows, and the People’s Bank of China still manages the renminbi’s exchange rate. Neither policy is likely to change significantly anytime soon.”


What investors are looking for in a reserve currency isn’t the technology—it’s a currency that’s stable, underpinned by a strong economy, freely convertible, and able to be used widely.