However, it only owns 3% of US debt; they are the largest non-US holder, but still a marginal holder. Basically, they deseated China for that spot of "Biggest But Still Small US 'Lender'". Both together are dwarfed by pensions, 401ks, and other US buyers and institutions.
https://www.visualcapitalist.com/charted-heres-who-owns-u-s-...