Greece is interesting. Between this and about the lowest rate of childbirth outside of marriage in free Europe, the culture there is considerably more traditionalist than I assumed.
An estimated 5% of Greeks also belong to Old Calendarist schismatic jurisdictions that protest the Church of Greece's adoption of the Revised Julian Calendar.
My impression is that Greece has a major divide between traditionalists and modernists. It has statistics like those where it performs strongly in metrics of traditional adherence, but then it also has the highest rate of acceptance of homosexuality of any Orthodox country. With that said I am not too familiar with the particulars of the socio-religious situation in Greece.