In his BYU devotional (January 18, 2022), Jeffrey R. Holland said something showing that he believes (correctly) that Jesus was not all-knowing in mortality and could even entertain/hold to incorrect ideas:
Even the Saviour himself, in the
excruciating ordeal of atonement, wondered if he, too, had been forsaken. (Jeffrey
R. Holland, “A Saint Through the Atonement of Christ the Lord,” beginning at the
21:29 mark)