Pix isn't intended (yet) for foreigners to use. It's mostly for local Brazilians, and here it's brilliant: free for personal use, really fast (frequently instantaneous, has a 10 second limit), and accessible (every major bank and most of the smaller ones supports it).

I can understand why Visa and Mastercard are worried. Apple is as well, since it refuses to support Pix in Apple Pay, which is mandatory in Brazil. But honestly? Fuck these companies. (Sorry about my French, I couldn't think of another way to put it.)