SomeoneElse
I had a look for this today and couldn't see anything.  I've removed the highway tag in https://www.openstreetmap.org/changeset/110079643 .  Other public footpaths here aren't very visible - https://www.openstreetmap.org/way/56910984 has a public footpath sign at each end, but the route of the path from the south isn't very clear at all.  I'll update these later with trail_visibility tags.  https://www.openstreetmap.org/way/947696320 however I couldn't see any sign of.