@RoadRunner, the videos show what @Superfebs found the easy parts. Likely grade three not referring to UIAA III, so much can be seen too.

Apart from that, I guess I meanwhile understand what the reference to "kompass" means, namely https://www.kompass.de/wanderkarte/ where sentiero 30 is depicted as *waymarked hiking trail*, which it obviously is not.

And that brings us to the other question: Is it enough for a path to be shown on a map, so that i can be mapped in openstreetmap? I always though, openstreetmap being about ground truth, not about copying. And all the parties with local knowledge here agree, that there is nothing on the ground there, no markers, no trampling.

BTW, Kompass maps shows the path quite differently, and others too. Kompass indeed seems to be "indicative" as well ;)