Netherlands has implemented Tikkie on top of iDEAL, which is essentially the same outcome. You link your bank account, send a payment request URL or put up a QR if you're a business. That's good UX, and it's getting better adoption.
Last time I went to Brazil I remember that at least twice I asked if the person seeling me something would accept Pix in place of cash since I generally don't carry any cash, and they happily accepted even if they didn't advertise this.
This fragmentation of digital payment methods has had a... less than optimal effect on European payment traffic, with a lot of e-commerce going through American payment providers like credit cards (Visa, Mastercard mainly) and Paypal. A lot of internationally operating online outlets have added support for iDeal over time though, so hopefully Wero will be deployed very fast.