I looked on the Faroe Island routes. I'm missing a few roads I traveled there:
1. on Viðoy island, the estern road, doesn't show on Google Maps aparently, but is on Openstreet. I drove there and returned on the west side
2. on Kalsoy island, no road is mapped, I drove all the way up north from Syðradalur to Trøllanes
3. on Sandoy island, the road 35 is missing
4. on Eysturoy island, the northern pass road from Eidi to Gyogv and Funningur
I could write to the guy we stayed on the island and ask if he can provide me an official road map of the country.
Thanks for the work