FIFA is experimenting with a new system called Football Video Support (FVS), allowing coaches to contest referee decisions during matches. Unlike the Video Assistant Referee (VAR), FVS relies on coach requests to review plays and is intended to be a less expensive alternative. However, it raises concerns about fairness and the potential to create disparities among leagues. Former FIFA Referees Committee Chairman Pierluigi Collina endorses the initiative, while other officials warn about possible injustices compared to the traditional VAR system.

Source