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…
There are third party apps you can use to pay with pix using a credit card, can't recall that name, but read about it here a few months back, on another pix-thread.
> CPF (Brazilian Tax ID). Then to open a bank account
Getting a CPF is absolutely trivial, but I'm not sure you can open a bank account without RN/RNE, at least not with local banks. Can probably manage with one of the online banks.