@ CB
“you don't think someone might infer from this that those paths don't actually exist”
No
People using them won’t be checking OSM.
People using OSM probably know about desire lines.
With OSM, if it doesn’t exist (or under construction) the ‘path’ won’t have nodes joined up to ‘connecting’ paths.
https://m.cyclestreets.net/journey/93504043/#15.85/55.965524/-3.2406
No idea why “quietest” route is differenr for this short section!