the autofocus of the BRIO can handle it - whether it really works with the scanning of the QR code depends on the online banking solution: with the one from CS it works perfectly.

I don't think it works, at least I haven't managed it. The camera is suitable for Skype and zoom conversations. What you hold in front of the camera is laterally reversed.
Greetings Werner

In principle, it is possible. It depends on the software the bank uses. At Postfinance, you can activate the camera (Brio) to capture a QR bill. It works. I have tried it out.
With ZKB, activating the camera is not possible. ZKB chose another way. On the PC in the browser, log in at onba.zkb.ch and start the payment dialogue. The scanning of a QR-bill is offered via the mobile app of the ZKB, i.e. on the smartphone. The code scanned on the smartphone is automatically displayed in the PC entry dialogue. The camera (regardless of brand/model) cannot be used at the ZKB. I do not have any other banks.