Is it necessary for a third party to agree to interview the immediate supervisor of a large company?

According to the job Q query, when interviewing a large company, even if the direct supervisor agrees, the consent of a third party (such as human resources department or other relevant departments) is usually needed. This is because large companies have multi-level decision-making processes and approval processes to ensure that hiring decision conforms to the company's overall strategy and policies. The direct supervisor can recommend suitable candidates to the human resources department or other relevant departments, but the final decision is usually in the hands of these departments. The third-party department is responsible for reviewing the qualifications, experience and skills of candidates, ensuring that the recruitment conforms to the company's policies and standards, and may negotiate with other departments. Therefore, even if the direct supervisor agrees with you in the interview, there is no guarantee that you will get the job, and ultimately you need the consent and recognition of a third party.