I found no interviews, no recordings - it seems what survives are his notebooks.
Can you describe the basis for the claim?
Like if you take Zamyatin's "We", and make the main character a propagandist working for the government, you get 1984.
He wrote of it, and in some ways his writing on those times is better than his fiction.
https://en.wikipedia.org/wiki/Nineteen_Eighty-Four#Sources_f...
A very interesting read, but it did not verify any of your claims.
Having witnessed the horrors of Nazi Germany, the rise of Stalinist Russia, and the Spanish Civil War, Orwell wanted to expose the mechanisms of oppression and propaganda.
Its like animal farm a staunch criticism of the communist experiment and the societies it would form. The history rewritting was actually a typical socialist society pehnomena, going so far that china basically erased its whole past permanently. Its a incredible young country (barely 70 years old) and had to reimport a ton of its culture from taiwan!
Orwell lived through the hyper akward year, where hitler and stalin where allies and best friends - and thus saw the moscow controlled part of the international defending facists as best friends for a year, right after they stabbed the anarchists in the back in spain.
For those reading who are curious on which comment is accurate, I would encourage you to read up on it to confirm for yourself. It's a highly fascinating subject to read about.
Another thing the Spanish Civil War did make Orwell was a hardcore realist.
"Half a loaf of bread is better than no loaf."