Do you mean, "Lebron is not normally clutch if you don't count the playoffs, elimination games, Game 7's, and 4th quarters in general"?
Thus "Lebron is not clutch" narrative is one of the most ridiculous things in sports. He literally holds the records for Game 7 scoring and elimination game scoring, and he ain't even primarily a scorer. He has two of the greatest Finals comebacks in NBA history against historically good teams. He's won four Game 7's in a row. He has more playoff game-winners than anyone in more than twenty years (and could end up with the most ever).
He's been clutch since his first postseason, when he got two game-winners in his very first series and controlled almost every fourth quarter, even against the Pistons. He's been at or near the top of the NBA in 4th-quarter stats and clutch stats every year since then. He literally had ONE bad game in 2010 (not even an elimination game and when completely outmatched by the other team) and one bad series on 2011, and some fools still trying to hold that narrative when he had a whole career before and after that proves otherwise.