Nope. He was unapologetically socialist before his involvement in the Civil War, and that conflict actually did make him anti-communist, and an anti-authoritarian. Socialism of the kind Orwell supported and communism of the kind we have seen in the world are two very different things.
replyFor 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."
june 1937, in a letter to Cyril Connolly, written in Barcelona during the Civil War;
reply>‘I have seen wonderful things and at last really believe in Socialism, which I never did before.’
He was a libertarian socialist at various points, sure, but you're painting him as something he wasn't. He was avowedly a socialist throughout most of his adult life even if he wasn't playing patty-cake with the Trots and the MLs and various other 20th century Euro-centric leftist revolutionary groups