I was afraid someone would answer with that

Yes, good explanation.

That is of course correct and I'm well aware of that, however there is more than one type of "double roller" (which is a strictly a marketing term) chain.

There is one type that usually has seams on the tiny cylinder shaped areas that physically sit between the teeth, which do not roll at all even though they are marketed as "roller". Should be called "double row" instead, because nothing actually rolls.

Then there is the other type that has usually seamless tiny cylinder shaped areas that sit between the teeth, that actually DO roll. Those are correctly marketed as "roller", usually "true" on top of that but not always.

The question is, are the sprockets the same between the two types of double row chains?

Might be too basic to bother with, but maybe not.