sunnySA is correct. It’s not G. It’s a Romeo.
Since when did anyone need an ‘approval’ or ‘authority’ or the ‘c’ word to enter class G? I’ve heard the ‘c’ word used when an aircraft is going to temporarily leave G then return to controlled airspace, but never to merely enter G. Who is required to be equipped with TCAS in G?
There are plenty of places that are advertised as being G outside TWR HRS. This isn’t one of those places.
Your question: “What the hell is it then?”, points up part of the problem, albeit inadvertently I suspect.