Have you tried going into the settings app (from the home screen) and tapping on your Huawei account at the very top? I have small square icon there in the top right which let's me scan for QR codes and such.
1. Open the camera app on the Huawei P30 Pro. 2. In the live viewfinder, select the "Vision" icon at the top left. 3. Now select the symbol for "QR Codes" in the bottom left corner. 4. Now scan the QR code with the Huawei P30 Pro. 5. Now the corresponding website, business card, function etc. opens on the smartphone. So now you know the procedure to scan a QR code with the Huawei P30 Pro
Ya i found it out a while ago it had to do with Canada for some reason they block Hivision which is part of QR scanning and the calories scanning so Sad the calories scanning would be cool. It's better the google lens.