This question has not been systematically tested. Therefore, only the spontaneous comments of some test persons are available - if at all.
Russian
The half-open answer category "Other nationality" was translated as "Other country" in the Russian questionnaire. Test person RUS01 also points out that there is a big difference between citizenship (e.g. Ukrainian) and nationality (e.g. Russian) in Russia. She therefore suggests speaking of "citizenship" as already mentioned in the question text.