What they say basically. I’ve been riding off road here for over 30 years, the official stuff is a good way to get to some nice spots. Ideal for getting around for bikepacking but not very technical of exciting.
Theres some nice cheeky stuff, but also a few spots to avoid due to belligerent locals (having said that, in all that time I’ve only had a very few run-ins).
If you are wild camping do be very discreet, head deep into the enclosures as it’s very much frowned upon. Also you’ll avoid the early morning dog walkers. Again I’d been doing this for years no issue if you’re sensible.
Generally the far north and south bits of the forest are more ‘local ‘ particularly the north as lots of riding stables. Keep central and you’ll be ok.
Again I’m glad to help with routes if you want hints 😁