Identified errors:
This is not correct for Romania: officially it’s Surname + Given-name, live in Hungary.
Not true for Greece, it’s just First-name + Surname. It just happens that some Surnames are derived from the father’s name (think “Anderson”).
it’s funny Portugal and Spain are same-y but the other way around!
And I didn’t know it was a thing in Greece to use the patronymic too
Greece et al.: Orthodox Church tradition maybe?
oh right that makes sense
It isn’t a thing, the map is wrong for Greece.
Thanks for clearing that up :)