Hi Tony.
So on OSM things are mapped as they appear. So if it looks like a track, it is a track.. Access tags and other information can be added show routers (like Komoot) know what paths & tracks different modes of transport can use.
So for this track I'd recommend that it is:
highway=track
agricultural=yes
bicycle=permissive horse=permissive
foot=permissive
motor_vehicle=private
and then you could remove the "access = no"

There are loads of different access tags you can add depending on the situation - https://wiki.openstreetmap.org/wiki/Key:access

If you have any issues let me know!
Happy mapping!
~Thomas

