I‘m visually impaired and QR code menus have been a real boon to me. I‘m gonna be using my phone camera to read the menu either way, It‘s great when I don‘t have to keep the autofocus steady and illuminate half of a dark restaurant with the LED light.
Previously I would often try to find the menu on the website instead, but the QR codes are way more convenient. A direct link to the menu on the google maps listing is also pretty good.
Most importantly it has normalized my previously "weird" behaviour socially.