Correct, but maybe for starter it can be a bit confusing because we need to choose one of the payment method first for the "QR Code" method. After we get the QR code we can send our money from most of all the available payment method (except crypto). However, I think it is better if we pay/deposit using the selected payment method.
Yup, I myself initially thought that QR should be scanned with the same provider before, but after I tried scanning with another provider, it turned out to be possible, so this makes payments simpler.
Is it successful Can it be sent or failed? I've tried using a different payment method a few weeks ago, I selected (Dana) and paid using another Electronic wallet but it didn't work "failed", had to use only one. If just scan it a can but if it sent it "fails". Indeed it's very useful to use an instant and very fast electronic wallet.