Thank you! I am sad to have missed helping you. (I learned several new options from everyone for when I am in a pinch like you were!)
An option for the list here, a reader-generator combo:
QR Scanner (Privacy Friendly Apps) by the Security Usability and Society research group at Karlsruhe Institute of Technology
This is one that pauses to show you the link. It works well paired with the URLCheck app as the default web application.
https://f-droid.org/packages/com.secuso.privacyFriendlyCodeScanner