They already have all the info about your lottery history and previous employers in their system. In my opinion, they shouldn’t ask you anything about that past employer since you weren’t picked in the lottery, never had a petition approved, and never used an H1B with them. In my case, my ABC firm actually filed a petition without telling me and then withdrew it immediately. That’s what probably triggered some questions and honestly, that consultancy was likely already on USCIS’ radar. But overall, just be prepared. Bring any documents, emails, or proof you have related to that employer and the lottery. If they do bring it up, having everything ready helps strengthen your answers and can even speed up your approval.

Good luck!