How does the group stage work in the World Cup?
“Teams advance to the knockout round based on a point system, the two teams with the most point secure a spot while the remaining two are eliminated.
Winning a game awards three points, while tied games give teams a single point. Losing teams go without points.
Overall goal difference determines which teams advance in the World Cup if the points are tied after all three group games. ”
Source: World Cup 2022: Teams in the round of 16 bracket | king5.com