Macedonia recently changed their name to North Macedonia, which has also been adopted by the Countries of the World quiz. So it actually meets the criteria now.
You are missing The Netherlands and Northern Macedonia. (Plus should Czechia be on here? Czech republic can still be used, but they switched to Czechia in 2016 as the official short name I believe. If we go by long name many others would have to be on here, like republic of Ireland))
but North Macedonia should be included