[basch]

If you were out at all during / after Covid, restaurant menus were all QR codes on tables around me.

They are on posters all over. Commonly used for sign-ups and event entrance. It’s a mid assumption to think they are more popular in tech circles, I actually think the reverse is true.

[bdw5204]

There's a reason why restaurants quickly returned to physical menus: most of their customers hated QR code menus and the restaurant business is extremely competitive so you have to be responsive to what customers want to stay in business.

It's only in markets that lack competition that a company can do unpopular changes that reduce its costs without losing customers. For example, stadiums all went cashless "for your safety" and then never brought cash back. Which they can do for the same reason they can charge $5 or more for a bottle of water: they're basically a monopoly with a large captive audience.

[KineticLensman]

One issue with QR codes in restaurants is that they force everyone to get on their phones which is sometimes exactly what you are trying to avoid by going out in the first place

[cozzyd]

Or your phone can die...

I went to a place recently where you ordered on your phone and it kept your tab open until you closed it... I had to race against my phone dying to pay.

[NikolaNovak]

As I mentioned in another comment:

I see QR codes everywhere too. But I never see them used , and nobody in my circle uses them. And the only times I hear about them is when people complain about them in Restaurants etc.

May very well be different in other locations (I'm in small town in Canada, just outside of Toronto, traveling to Ottawa frequently). I would guess without any evidence that downtown NY or Boston may see more use :).