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In terms of climate conditions, hasn't Qatar guaranteed that there will be some kind of super stadiums with fully air-conditioned throughout the stadium? I think I've heard something similar.
I know that the Qataris are swimming in wads of money after the LNG prices went up by 20x during recent times. But at the same time, the players might find themselves in unfamiliar territory with a lot of restrictions. They can't go out with their friends to have a couple of beers. They can't even bring their girlfriends to the tournament, because unmarried couples are not allowed in Qatar. And more importantly, although the stadiums may be air-conditioned, we can't expect the players to stay there for 100% of the time.
But in the news they wrote that even for ordinary tourists the rules will be soft and they will be able to drink beer. Similarly, girls - all these restrictions concern the Qataris themselves rather than tourists, and even more so football players. If I remember correctly, one of the players is openly gay and he criticized Qatar for homophobic laws, but it is obvious that no one will detain him there or prosecute him for homosexuality. All these restrictions are rather far-fetched and the players will not notice them. As for the rest of the conditions, they are accustomed to a change of scenery and, in general, all the players will be on an equal footing - Europeans, Americans, Africans and Asians.