QR Codes For WebAR: Placement And Flow Design
The QR code is not just a link. It is the bridge between a desktop product page and a usable mobile AR session, so placement and copy matter.
Placement
Put it near the product action area, not buried under generic content.
Copy
Tell the user what scanning will do and what device they need.
Fallback
Always provide a plain link and clear unsupported-device handling.