How Do I Design A QR-code To A Hot Key?
There is a sub forum for Forerunner 965: https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-965
I'm guessing you can't assign a QR code to a hot key. I can't on my FR945. Just scroll through the list of available functions.
I suggest you install an app or widget from Connect IQ that can display a QR code. Then it will be easy to quickly view the QR code.