Onto Innovation interview questions

After a strange 30 min interview with the hiring manager, the HR talent acquisition never contacted and gave update. Strange because of the following: 1. The hiring manager (his title is AE) never introduced himself. Had his video off the entire session. 2. Seems they are looking for a person who already had worked with their tools / coming from Metrology background. 3. No probing question. No idea how the interview was judged - apart from what is already written in the resume.

Had a very basic interview asking about my experience, why I wanted to work at onto, and what my expectations were. After that we discussed salary and got my offer.