step down from vs. step down as

Question

I wonder how do the following differ from each other?

#1. Jeff Bezos will step down as chief executive later this year.

#2. Jeff Bezos will step down from chief executive later this year.

Answer 1

The first is grammatical; the second is not. A suitable sentence using 'from' might be 'Jeff Bezos will step down from the role of or the post of chief executive later this year'