Saudi are terrible. They are not in the same league as Iran. They didn't gas 700 schoolgirls, they don't routinely execute raped girls, they don't sanction marriage and sex with girls from age 9.
The gasing was, by all accounts, extreme elements at the time trying to quell the Zan, Zendegui, Azadi movement in 2022. If you go back and read the news you will see that parts of the state were actively investigating and trying to stop it.
Re the age 9 for marriage, in Saudi Arabia there was no minimum age for girls marriage until a couple of years ago.
The sad thing in all of this is that Iran is the middle eastern country with the most progressive social outlook, even more so than Turkyie. I've visited several times, and if the women didn't wear head cover, you could have thought that you were in Italy, Spain or France based on the social interactions. See for instance this piece from John Simpson
https://theotheriran.com/2014/09/20/john-simpson-iran-is-the-most-charming-country-on-earth/
It seems to be an extract of a longer piece from the telegraph, which I read at the time but I can't find now.
Watch movies like A Separation, or The Salesman, and tell me if that life is anything like we know is in Saudi Arabia.