According to this https://support.apple.com/en-us/HT208843 , it also just shows a notification on iOS, but I guess a URL that tells the camera holder they're being idiots would be good enough.

I just tried scanning a QR Code on 2 Android phones. The first one didn't do anything automatic, the second one detected it and added a button on the camera UI, if you press it, it will show the text (or URL) and you have to press "Open URL" to go there.

Interesting how the ad (YouTube video) oversells it, as if the URL loads itself. I wonder if that's how the ad agency (or whoever came up with this idea) sold it to the ambulance operators.

The default camera on my android does this plus way more. It attempts to do OCR. So if I point it at a QR code it'll parse it. If there is a url or phone number it'll be clickable. Addresses can open google maps. Etc.

It's honestly super impressive, and I noticed it at least 3 years ago on android.