You are correct, a lot can be done with both but there are a few benefits for NFC over QR in this use.
1 - A QR code needs to be clearly visible in high good and a minimal graphical quality. The NFC tag in the Ventum bars for example is under the EVA grip, on the grip there is a simple Booomtag logo (cut in EVA). That wont be possible with QR.
2 - NFC tags include a secure element toward duplication, they enable product authentication, that is not the case with QR, anybody can copy/print a QR code.
Downside of NFC is that Apple only adpoted it recently in their phones so older Iphones wont be able to read the tag but this "issue" will phase itself out quite fast.
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