I felt the same way when I was actively being recruited by Runway ML years ago. It feels like if I had half the knowledge I do now, I would've been the second QA hire (and I had heard that the person they hired instead of me had left with some controversy). My biggest flub was asking an EM about their CI/CD and she took this to mean 'explain CI/CD to me as a basic concept' - something I didn't realize until after the interview.

They got a 300 million Series E about a year after that flub ;_;