“Every line of serious work that I have written since 1936 has been written, directly or indirectly, against totalitarianism and for democratic socialism, as I understand it.”
The book attacked authoritarian socialism (“IngSoc” being a bit of a clue) to some degree but it didn’t really focus on the socialist elements - it was all about methods of control, which could be employed under any economic system.
Animal Farm was a much more direct attack on Stalinism.
To be fair, the book came out on the heels of WW2 wrapping up, and the Nazis literally called themselves "National Socialists," so I'm not sure we're meant to take "IngSoc" at face value.
It's been literal decades so I may be misremembering, but I'm pretty sure he even addresses this?
What he has to say about it is bullshit, because he's reframing totalitarianism as global oligarchy (which is a little too close for comfort to "the globalists") and ending on the libertarian fever idea that capitalism of all things will destroy oligarchy.