I can see that Visa and Mastercard are freaking out, not because Pix can take over their business model, but because it can give ideas to other countries doing the same. I've spent three months earlier this year in Brazil and never used Pix once. Not because I didn't want, but because I couldn't, or let's be honest: my time was not worth the hassle. To be able to pay with Pix, one needs to get a CPF (Brazilian Tax ID…
Europe is already moving towards having own payment system with Wero
Apparently, some of these already have interoperability between each other too (https://en.wikipedia.org/wiki/European_Payments_Alliance), happy to learn I can now send/receive money to/from my Portuguese brethren :)