Well, IDR Labs has him as ISTP. & i think he probably was.
Now, a lot of people seem to think he was INTJ. A reasonable judgment on the surface. But, I think if you examine his way of operating, his life, career, etc., it's very clear he was *not* a J.
He comes across as Intuitive because he put *so much* emphasis on ideas, seemingly, such as "innovation" & "blah blah blah."
However, just because somebody ostensibly focuses on *ideas* a lot doesn't mean they're a N.
I'm sure we could argue for days about this, but I'm tired, & there's probably another forum thread on here discussing him at length in which people have made all the points that you & I are bound to make.
Thank you