Question: What is the restart if a goal kick does not leave the penalty area?
Disambiguated questions and answers: question: What is the restart if a goal kick does not leave the penalty area before 2019?
What is the restart if a goal kick does not leave the penalty area since 2019?
answer: kick has to be retaken
the requirement that the ball had to leave the penalty area was removed: the ball became in-play as soon as it was kicked
Natural Questions answer: the kick is retaken (from the Wikipedia article "Goal kick")