As projects increase in size and complexity, ensuring thorough code reviews can be challenging, but implementing a multiple reviewer requirement for pull requests helps safeguard important projects from unwanted changes. This feature allows users to specify the exact number of reviewers needed for each pull request by adjusting the settings under "Protected branches" in a repository. Once set, the number of required reviewers and the status of their reviews are displayed in the sidebar and merge section of pull requests to the protected branches, enhancing the review process and project integrity.