I'm just hearing about Pix, the Brazilian central bank digital payment system, free for person-to-person, instant, etc. Wildly popular, now used in 8 LatAm countries.
MasterCard, Visa, Meta & Co. teamed up to persuade US gov to impose tariffs this summer bc Brazil's practices "may undermine the competitiveness of U.S. companies engaged in digital trade and electronic payment services." How pathetic.