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@arkiboys Thanks for reaching out. You can enforce a branch policy that automatically includes code reviewers when a Pull request is created.
You can select reviewers for specific directories and files in your repo, and then these reviewers are automatically added to pull requests that change files along those paths.
When you configure this policy as Required, the PR cannot be completed until all required reviewers approve the changes.
Please refer to this article for more details: Automatically include code reviewers. Hope this helps.
On a side note, please note that Azure DevOps and its services are not supported on the Microsoft Q&A platform. In case of further questions, please post your question in Developer Community, where the Azure DevOps team and DevOps community are actively answering questions.
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