No way!
Just did a search. Here’s the truth:
Debra Winger was the voice of E. T. Not true.
Steven Spielberg asked his good friend Debra Winger to record the voice for E. T. on the rough cut of the movie. Which she did. But in the movie that you and I saw and heard the voice was a painstakingly made creation of the English spoken words voiced by a woman named Pat Welsh mixed with breathing, snorts, burps, and other sounds of 18 different contributors some of them animals.