The Camera app then takes you to Safari to show the QR code info but if you use the Code Scanner app then the information can be input in the app itself for things like the Service NSW app. You can add Code Scanner to your Control Centre by going to Settings and then clicking Control Centre. Then click the green plus symbol next to the Code Scanner app. You'll then be able to access the app when you swipe on your Home Screen to see other Control Centre apps like Torch or Camera. Remember, when you close Code Scanner the code will be lost and you won't be able to access its information again without another scan.