It's not about the "culture", it's not about religion neither, it's about politics. If Qatar wanted to, they could have let anyone be anyway they want, there was a woman who got famous (and that was her aim) by wearing clothes Qatar didn't want, and they didn't jail her for it, nothing really happened to her, which shows that they can let it be if they want to, did anything happen? But, I can guarantee you that there will be more people like that on the next one.
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It is a controversial issue to compare Qatar with other Islamic countries - it is too rich a country and in fact there can be at least Islam, at least belief in aliens - there is no tension between different segments of the population because everyone is more or less rich. Now imagine a poorer country where religion is traditionally used to oppress the population. When holding such an event as the World Cup and such women (as I understand you were talking about that Croatian model with impressive forms), there can be an explosion from both fanatics and those who want a non-religious state and civil liberties.
Qatar is a small Muslim-majority country in the Middle East whose economic condition is so good that they are able to successfully host such a big tournament as the football World Cup. Qatar World Cup 2022 has not only successfully organized but also broken all previous World Cup records. But after spending such a huge amount of money, they told FIFA directly that they cannot do any anti-Islamic work. He took all the possible steps to keep their religion right. Qatar imposed some restrictions on girls' clothing, which is why Colombian singer Shakira did not attend the opening ceremony of the World Cup, and she criticized Qatar's decision to do so. Regardless of these things, the World Cup in Qatar ended successfully.