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I'd say basically wherever people wore masks during COVID.

It started as a hygiene thing. Now it's stayed as a convenience thing.

At this point in NYC I'm extremely surprised whenever I see a physical menu.

Anywhere people don’t want to pay for labor. Blue states mostly

I've seen them this year in California, Washington, Spain and NYC.

Interesting. I spent a month in San Diego earlier this year, but maybe I didn't go to the right places, or maybe it's because San Diego is conservative relative to some other parts of California.

Some restaurants paid a lot of money for QR-code things, and those push it from some kind of "sunk cost" fallacy I feel.

Out of 5 restaurants in Miami only two had QR codes, and one revealed menus instantly at the slightest hint that someone at the table couldn't read the code.