The latest Microsoft Edge has a lot of group policies that can be configured to your specific needs in your organization. All available policies at the time of this writing can be found here …..
With GPO, this can be achieved as shown below.
Depending on the version as stated in the screenshot, you must configure the Open Microsoft With Policy as well.
Configure Microsoft Edge to pre-launch at Windows Start-up
That is how this can be done via the GPO. This can also be done via the Microsoft settings itself. But this method is recommended for organisation wide policy.
For a list of all available Group Policies (GPO) to configure Microsoft Edge Settings, see https://techdirectarchive.com/2020/03/08/group-policies-gpo-available-to-configure-microsoft-edge-settings-2/