They are grouping them regionally and the team groups will be concentrated just in those regions:
“To reduce travel, FIFA plans to group countries by region.”
EAST: Toronto (BMO Field); Boston (Gillette Stadium, Foxborough); Philadelphia (Lincoln Financial Field); Miami (Hard Rock Stadium, Miami Gardens); and New York/New Jersey (MetLife Stadium.)
CENTRAL: Kansas City (Arrowhead Stadum); Dallas (AT&T Stadium); Atlanta (Mercedes Benz Stadium); Houston (NRG Stadium); Monterrey, Mexico (Estadio BBVA); Mexico City (Estadio Azteca).
WEST: Vancouver (BC Place); Seattle (Lumen Field); San Francisco (Levi’s Stadium, Santa Clara); Los Angeles (SoFi Stadium, Inglewood); and Guadalajara, Mexico (Akron Stadium).