The path up Mount Everest on the Nepali side has been mapped from the Strava Heatmap (not by me). I've marked it as private based on the permit situation (https://kathmandupost.com/money/2023/08/12/everest-permit-to-cost-15k-from-2025) but I am not sure about the precise location that a permit is required from, I also have doubts which parts should be mapped as a highway=path at all. 