The National Socialist German Workers' Party was indeed a socialist ideology. While the German govt didn't have physical ownership of production, they did have de facto ownership. I recall reading about price controls, guaranteed employment assigned by the govt, and the destruction of small business taking place under what was ostensibly a war economy.
But it always comes down to how exactly you define something. It's easy for some academics to go through life changing definitions whenever necessary to avoid any pushback against their hypothesis. Keynes himself seemed to view the political spectrum as trending from authoritarianism to the practice of laissez-faire; the collective vs. the individual.
I find Orwell a most intriguing character. While he seemed to suffer from paranoia , he was one of those that actually had also reasons to be paranoid at times. So it becomes hard to distinguish his mental struggles with inspiration and criticism.
He is also quite controversial at times, once you dig into the man. He wrote a review of an uthor where he claimed to have some weird admiration for... Hitler. Controversial on any context.
But given the turmoil of the world of his time and the several ongoing changes at the time on many levels it gives some clarity to his works. Many, most of his concerns at the time are as relevant today as they were then.
Interesting topic.