During this stage of résumé review, employers use the résumé to guide interview questions

Yes, the resume give HR / Technical person to understand and spot questions from the resume.

Explanation:

Though the question is little incomplete, I would try to answer assuming about the interview phases especially this resume review.

Resume is the first thing which the interviewer would see before they see you (Eg. Resume from job portal, resume received through friends or other employee referral, resume received through job fairs, etc)

So the interviewer

can find whether the information given in the resume is true by spotting questions from that and testing your answer in the personal interview. can also understand how your work and the organization's expectation meet. can choose the best candidate by looking at the resume itself.