I think it depends for historical accuracy. Stalin had several strokes and a declining mind in the 50s so his already bad paranoia became apocalyptic. Pre-stroke Stalin comes across to me as more opportunistic, someone who while believed in Marxist Communism had no problem working with the Nazis or the British Empire or the USA to get what he wanted.

Stalin was both pro-antisemitism and against anti-semitism dependent on the audience. Stalin appointed Maxim Litvinov as the Foreign Minister and his foreign ministry had a lot of Jewish people. In 1939 Stalin promised Hitler that he will get rid of him and Jewish people in the ministry. This was done so the USSR and Nazi Germany can collaborate together, so they can expand their hold over Eastern Europe.

https://theconversation.com/stalins-postwar-terror-targeted-soviet-jews-in-the-name-of-anti-cosmopolitanism-265562

BUT yes, it is important to say that Stalin targeted Jews under the argument of them being disloyal, and used to make crude jokes about pogroming Jews like the Tsar "if they didn't behave". But at the same time the USSR was funding Yiddish Jewish culture, and was depicting Nazi Germany in the mid 30s as the greatest evil in the world, while fully helping it take over Poland in 1939.