I personally think there is definitely a certain risk, but the risk is not very big.
In fact, I think if the QR code for payment is leaked, in fact, from our layman's point of view, it only leaks a rough name, unless it is said that your acquaintance knows you. He can know that this is your QR code. Without knowing you, I think people who see your QR code will not get any information. After all, WeChat is backed by Tencent.
As for Tencent, a company as big as Tencent, has made the WeChat payment project so good and has such a big influence in China, it must have considered the security of the payment code. Question, and the reason why so many stores now choose to use payment codes, today the payment codes are placed in a very obvious position. That means it is relatively safe, and it can’t bring you anything.