We have the Nations League for building a team for the WC qualifiers. Most every Finals hosts selection has involved levels of corruption. Ridiculous world cup decisions? eg USA 94, fans travel from New York to the baking heat of Orlando for an afternoon game, then back to New York, then god knows where for the knock out round.The WC Final played in daytime in a concrete dry sauna.
Euro 2020, example of one route, last 16 Amsterdam, ->last 8 Baku (36C), -> semi final London.
Qatar - the weather will be perfect, 30 mins travel to any game, can get to 2 games a day at your ease. The stadiums are magnificent and you say half filled? does that mean 'real' fans will be able to get match tickets at face value? Accomodation? do what peoplle usually do, a browser search $50 and up. Beaches are free and English lager louts not welcome. That's paradise.