policy name: repository_require_code_owner_reviews_policy
It is recommended to require code review only from designated individuals specified in CODEOWNERS file. Turning this option on enforces that only the allowed owners can approve a code change. This option is found in the branch protection setting of the project.
A pull request may be approved by any contributor with write access. Specifying specific code owners can ensure review is only done by individuals with the correct expertise required for the review of the changed files, potentially preventing bugs and security risks.