When I had a Google interview I was told (or it was at least heavily implied) that I wouldn't be evaluated by the people I was having lunch with. I didn't really believe that, and looks like I was right not to.
The thing about lunch interviews is mostly true. By default, the lunch interviewer does not actually evaluate you, they do not normally submit any feedback. But, if you say something that's considered way out of line/offensive, then yeah I'd expect the lunch interviewer to likely email the recruiter.
The thing about lunch interviews is mostly true. By default, the lunch interviewer does not actually evaluate you, they do not normally submit any feedback. But, if you say something that's considered way out of line/offensive, then yeah I'd expect the lunch interviewer to likely email the recruiter.