Hacker News Reader

You're very optimistic. I doubt anywhere near the majority of engineers have used LaTeX directly. I've seen a lot more (of all ages) who used Word for their technical writing. If they used LaTeX or TeX it was a one-off, not something they became skilled with.

It’s more common in CS than engineering in my experience, when CS is part of the math department.

Checking in as a BSEE: never used LaTeX.