I live next door to Qatar as it were!
Problem with Qatar is many fold, not least there being nothing to do there, especially as the temperature hits 40'C + with 80/90% humidity at times. Can be foggy and 34'C !!!
Tens of thousands of fans with nothing to do ...... alcohol available but in limited places, fan zones in that heat.
And the legacy? Stadiums will be empty in a tiny country with few teams and even less fans...
They are talking of eco stadiums, not a chance with the power needed to light and cool the stadiums their solar powered schemes have little chance unless technology moves on significantly in the next few years.