Microsoft has released an earlier preview of Group Policies for Microsoft Edge Dev and Canary Versions Canary and Dev channels of the browser. The work is in progress so there may be some changes in the policy depending on the feedback submitted by users. The ADML and ADMX files don’t include Policies for managing updates. Those will be provided in a separate administrative template file.
After the list of management Policies for Microsoft Edge Chromium channels is final the policies will be included in the browser’s release version. Currently, and administrative template file for the browser builds are rolled out. You will find a zip file that has the ADMX, an English (US) version of the ADML file, and an English (US) HTML doc with the list of policies and descriptions. The HTML file includes both Mac and Windows policies.
Source – techcommunity.