They're very common here in Europe. Although when shops get remodeled they usually are replaced with newer models that have doors (and now doors that close themselves, because people). Seems the energy costs have risen sufficiently to make them care.

UK has them.

Like on this picture: https://www.grocerygazette.co.uk/2021/11/09/supermarket-frid...

We used to have those in the Netherlands before there was any attention paid to energy savings (~15 years ago). Freezers also used to be just open without any coverings. Budget supermarkets like Lidl and Aldi were the first to introduce both sliding glass doors on the freezers and doors on the standing fridges.

The US has some, usually in the deli/cheese section.[0] It's the big shelf in the center of the image.

The freezer section has doors for more effective temperature control.

0: https://www.shutterstock.com/image-photo/austin-texas-circa-...

All the meat and dairy, and some vegetables are in completely open refrigerators in most Australian supermarkets, although they’re also air conditioned so any loss of cold air is just more air conditioning really

Adding to all the other comments: They used to be common in Germany as well, though I haven’t seen any for many years now.

If you do a google image search for "supermarket fridge", half of the results are doorless.

Common in higher-end stores in India.

Fairly common in Norway