Public Warning.
If you EVER, and I do mean EVER see a QR code for anything... not just some things, ANYTHING.
Treat it as a scam, do not scan it, they can easily be covered up with malicious redirects to fake sites to steal your financial details. Direct you to malware sites to try and infect your device.
Treat them all the same... as toxic, potential harmful to your identity and security.
Never trust them... EVER!!!
If you 100% must use one, do what you should be doing at any (ATM) cash machine, check for devices that have been installed by crooks. See if you can peel the code off, not just at the area around the code, but the whole sign... look for anything unusual and if you have any doubts... even if it's 1% doubt... DON'T USE IT
This isn't scaremongering, scammers and thieves are out there every day, placing fake QR codes on signs all over the place. No where is safe from them. The way to win is not to play. Don;t buy into the enshitification of everything, don;t be told that you can ONLY do it one specific way (legally they have to offer more than one way to pay for a service).
Please boost and spread the word.