Sweden has had a similar system for several years before PIX in Brazil. It is also integrated with the digital ID system (BankID). The main difference is that the Swedish system is ran through a private organization managed by all the major banks (and the central bank) in conjunction. So the central bank doesn't have direct access to the transaction data technically. While the Brazilian system is only interacted dire…
It's a problem for the victims, but I don't think it's why there's a scam epidemic in Sweden - scammers don't care if you get reimbursed or not. I believe the root issue is the ease and speed of transactions - it's easy to get fooled in a moment of confusion, and before you realize what happened, the money is out of reach of the authorities - as cash, crypto or in foreign accounts.