Having lived there, and lived in the homes of Saudis, I'd personally dispute that the dominant version of Islam there is extremist. I'm non-religious though both my parents were raised Christian and occasionally the Bible was read at my dinner table at home in the Midwest.

By and large, the Saudis I talked with were all very opposed to political/religious/militaristic violence. There was, however, a noticeably strong bias towards homophobia, especially if the context was religious discussion. I did meet a few people with extremist religious views, but they were <1% from my experience.

Overall I've met a higher % of fellow Americans who, unprompted in casual conversations or professional settings, share extremist views with me like "We should nuke ____ and wipe out every last person in the country" or "Shia Muslims are universally the most evil people on the planet", etc. Even extremist Saudis have not expressed similar sentiments to me except occasionally against Zionist Israelites (after poking, they'll always reduce it to just the zionists, not pro-palestinian / anti-zionist Israelis), and sometimes the royal families of the GCC countries.

I was located in Dhahran / Al-Khobar / Dammam / Bahrain / Abu Dhabi / Dubai / Oman.

Don't state things like that factually unless you have some knowledge in that field or at least first hand experience. Regurgitating your impression from second hand stories and media narratives is how you stereotype and other people.