Now that you have imported your OSDeploy GPOs, you can edit them. OSDeploy Branding should contain all your unique settings for your Enterprise.
The easiest way to see configured Policies is with a Filter set to Configured Policies
Set your proper Edge Start Page
The remainder of the Policies are as needed. Disable the Policies you do not intend to use
Edit the existing registry entries for your Enterprise for both Computer and User Configuration
Once you have made these changes, simply Backup or Copy this GPO and place it in OSConfig at the following path