I'm not going to pretend to be unbiased in this, just so you know. I'm Palestinian myself.

Sacha Baron Cohen has not recently explicitly called himself a Zionist, however the pattern of behaviour (in my opinion) is clear.

Described as very Zionist in this article. https://www.timesofisrael.com/the-nerd-factor-in-sacha-baron-cohens-past/

In general, he uses pretty racist stereotypes about Arabs in general. i.e. The Dictator, Ali G, Borat, etc. (it's a known tactic that when calling something anti-semitic isn't enough to stave off reputational damage to Israel, stoking Islamophobia or anti-Arab racism is another tactic Zionists reach for https://www.dropsitenews.com/p/leaked-israel-reputation-survey-research-mark-penn-stagwell )

He conflates criticism of Israel with anti-semitism, and lobbied for tiktok to be taken over by Larry Ellison for being too pro-Palestine. (The NYT reporting on Palestine is atrocious, and so is this article's slant, but I'm linking it anyway) https://www.nytimes.com/2023/11/16/technology/tiktok-jewish-open-letter-antisemitism.html

Works/worked with the ADL, who also conflate criticism of Israel with anti-semitism and are pro-Israel https://www.adl.org/resources/article/following-sacha-baron-cohens-speech-here-adls-short-list-social-media-accounts

Co-writers of his include Lee Kern, openly a Zionist.

He twists and misleads people about Palestinians: https://v2.courthousenews.com/palestinian-grocer-sues-sacha-baron-cohen/

Hopefully that justifies my point of view enough for you.