I get the QR code menu thing, that’s a solid example imo (though there ARE benefits to QR code menus), but the people hassling with their phones to extend their parking, or paying for their portion of the meal via QR code doesn’t sound at all like the doorman fallacy, just a shitty UI.

Without tech, these people would not have been notified that their parking would expire in the first place, and would have all had to leave the restaurant to extend their parking. Is that really better?

And splitting the bill among six people is an age old hassle that definitely has gotten better with tech at places who have a good UI for handling it.

Agreed.

Generally, with QR menus I'm used to paying when we order. No need for secondary processes or worrying about something not being paid for.

A popular solution in my country, at least for less formal restaurants and bars (and even nightclubs) is for each customer to have their own tab, which gets marked by waiters and stays with the customer. In those places, it's also the norm that you pay your tab at the cashier prior to leaving, and waiters don't have to handle with money.