Most vacancies require the candidates to be team players. And most people say they are. The problem is that you can not be a good team player if there is no team. A functional unit is not a team. Most often it is a workgroup where people work in silos doing what's written in their job description. To become a team there needs to be a shared goal - the reason why this team was created in the first place. They also need a psychologically safe environment that encourages new ideas, constructive conflict, and emotional support.
It takes a lot of time and effort to build a team so that they can bring more value to the organization. Working in a team is itself rewarding for the team members.
But it might happen that you do not need a team, and a workgroup is enough. If that is your case - don't go looking for team players.