@GarthHoxsie-Quinn - Thanks for adding your additional feedback on this. We don't have this on the ArcGIS StoryMaps roadmap at this time since the capability to generate QR codes is readily available in major browsers, and I'm not sure we understand the additional value it would provide to have a QR code generator integrated into the product.
If you do have additional information to provide, I would suggest adding this feedback to one of the Ideas boards if you'd like others to vote for it and add their use cases. Since it sounds like you are interested in seeing this capability become available across multiple ArcGIS apps, I would suggest the ArcGIS Online ideas board.
For now, I think you'll find it relatively easy to create QR codes from many browsers. For example, in Edge you can click in the address bar, then click the QR code button. Here's a QR code I made for this Everest story.
Owen Evans
Lead Product Engineer | StoryMaps