Men's soccer has been an under-23 competition at the Olympics since Barcelona 1992. As a result, the competition is technically a youth tournament and therefore has a different dynamic to it, despite the allowance of three overage players on each team roster.
FIFA, the world governing body for soccer, did not want the Olympics to compete with the World Cup as the biggest international soccer competition, so age limits were introduced. No such limits apply in women's soccer at the Olympics.
As well as age limits, another limiting factor is the fact that clubs are not obliged to release their players to compete in the Olympics. As a result, some of the biggest names in the game will always be absent. For example, France World Cup-winning striker Kylian Mbappe was eager to compete for his country at the 2024 Paris Olympic Games, but his club at the time, Real Madrid, would not allow it.
Nevertheless, plenty of big-name players have competed in the men's football at the Olympics, with Neymar and Lionel Messi being among them in the past, while former Arsenal striker Alexandre Lacazette was part of the France squad in 2024.