I'm not sure why exactly, but I've heard the same from every single person using LLMs for anything related to jobs. The posting says it needs at least a B.S., and the LLM denies an applicant because they have an M.S. The posting thinks it needs 3yrs of work experience in XYZ technology, and it won't add it to the candidate's list because it doesn't have the context that the HR/LLM filter on the posting adds a bunch of nonsensical requests or that some other combination of skills makes the candidate stand out above and beyond that missing "requirement." And so on. The quality is quite poor.

On the other end of it, something like 80% of resumes I receive right now are clearly hallucinated -- referencing accomplishments that are copy-pasted from the novel-to-our-company thing in the job description a candidate will be working on, usually claiming they did XYZ at big tech a decade before the thing existed, or similarly with languages and skills. The resume "tailoring" process just manufactures lies rather than tailoring actual experience to the actual job.