Sweden is a big country so I could definitely be wrong about how things look across it. However, in the greater Gothenburg area every Ica I've visited has it - that includes everything from big ones in the city and shopping malls to small ones in the suburbs 30km outside the city (where I live).

In the greater Göteborg area, no Coop, Willys, Lidl, has this. And some ICA have it. Casually, the one closer to your home, it seems.

Going from "a supermarket near my home" to "every single supermarket in sweden" is kinda of a big leap.

Try ICA in Olskroken or Godhemsgatan for example…

I Most supermarkets have self checkout, but even that isn't omnipresent (and it's usually slower).