Qatar hosted the World Cup in 2022 and surprised the world by hosting the World Cup for the first time. They planned a lot around the World Cup and started building a lot long ago. Other countries have never spent so much money to host the World Cup as Qatar has. Qatar has built a city just for the World Cup and has built several modern stadiums with air conditioning so that the spectators can enjoy the game very comfortably. The 2026 World Cup will be held by three countries and I think that three countries will not be able to host it like Qatar did when they hosted the 2026 World Cup. However, those who are lucky enough to watch the 2026 World Cup will definitely see something wonderful and it may be that Saudi Arabia has broken all the records in history to host the World Cup.
There were a lot of complaints about the 2022 FIFA World Cup. There was exploitation on the laborers who built the stadiums and the fans who travelled to Qatar faced a lot of restrictions and other issues. The 2022 edition remains one of the worst world cups in the history if the tournament. On the other hand, the 2026 edition is co-hosted by three North American countries, and I believe that it will be planned much better. There is no need to construct any new stadiums, as already there are a number of existing stadiums in these countries.