The last two exclusive QR Code menues I tried to use were just stupid:

One was on an island in the Adria without cell phone reception. I had to ask the waitor on his second round for the wifi password, which he did not know and supplied on his 3rd round. All of this took 20 minutes.

the other one was in an cafe mostly visited by tourists in Scotland. They had a website that was only accessible to British people since brexit, and they did not care to fix it.