Talkytoaster maps are, as mentioned all over our site, including all the product pages, based on data from OSM and NASA, not OS (Ordnance Survey, IGN, etc.).
Rights of Way (R.O.Ws) are included (and shown) where that data exists in the raw OSM map data and is correctly tagged.
Our TT 1:50K Look n Feel or TT HD Topo/Topo Pro maps show footpaths as red and white dotted lines, bridleways as red and white dashed lines, cycleways as blue and white dashed lines; just like on an OS Landranger map (1:50K).
The same is true for Public Byways, Restricted Byways, etc. these are clearly shown as distinct R.O.Ws on our maps.
Long distance paths/routes and cycle routes are also shown clearly as such (even when parts of them include roads, etc. and not just footpaths, bridleways, cycleways, and so on).
There are paths (R.O.Ws) on our maps that are not on OS/IGN, etc. maps, and likewise there are paths on OS/IGN, etc. maps that don’t exist on the ground (I’ve had this confirmed by many customers).
There are other tracks (forestry, farm, etc.) that are also shown on our maps, these may or, may not be, R.O.Ws; these are shown as brown dashed lines on our maps.
Paths (R.O.Ws) are often moved, diverted or closed and these may not be reflected on the OS/IGN, etc. maps for over a decade (I’ve come across this myself).
The other issue with OS/IGN or other official (often military) maps is that even with the latest map, the data is often multiple years old (and not re-surveyed for many years), where OSM map data is updated all the time (by locals and those that have recently walked/hiked/ridden that area/track/path, etc.), and that is why we create new versions every week (for the British Isles, and at least once a month for everywhere else across the globe)…
Finally, our maps are not a replacement for OS (or Harvey, IGN, etc.) maps, they are designed to be used with them; ours on a Garmin device used alongside a paper map or the OS/ViewRanger (or similar) app on a smartphone. That way you get the best of both worlds and have a backup just in case the technology fails or you drop, damage/break or lose the Garmin device whilst out.
Remember that any map is a snapshot in time; the data it shows may not be the situation as it is on the ground at the time of use.