I hear fly half a bit but other than that nope. Never heard anyone say Inside/ outside other than European kents.
League exclusively calls them left and right now. I deadset can't recall anybody calling them inside or outside in my memory. AWTA. I've always heard it referred to as scrum, fly, inside and outside.
Every Australian I've spoken to has called them inside and outside centre. This forum is the first place Ive heaqrd 12 called secnd five-eight. Hear 10 referred to as outside half alot.