Hi Phil Lively,
You can obtain the policy templates directly from the official Microsoft Edge for Business website. When you select your channel, build, and platform on the site, click the link to get the policy files rather than downloading the browser installer itself. This downloads a cabinet file containing a compressed archive with all the necessary administrative templates. Once you extract the archive, look inside the Windows directory to find the msedge.admx and msedgeupdate.admx files.
To make these policies available on a standalone machine, copy the ADMX files directly to C:\Windows\PolicyDefinitions. If you are managing a domain environment, you should instead place them in your domain controller's SYSVOL Central Store, which is typically located at \yourdomain\SYSVOL\yourdomain\Policies\PolicyDefinitions. Next, navigate to the language-specific folder in your extracted archive, such as the en-US folder for US English, to find the corresponding ADML files. Copy these ADML files into the matching language subfolder within your PolicyDefinitions directory so that the Group Policy Management Editor can properly display the policy names and descriptions.
Hope this answer brought you some useful information. If it did, please hit “accept answer”. Should you have any questions, feel free to leave a comment.
VP