Computer Configuration > Administrative Templates > Microsoft Edge
Both
HKLM\Software\Policies\Microsoft\Edge
OBSOLETE: This policy is obsolete and doesn't work after Microsoft Edge 114. When this policy is set to enabled, Microsoft Edge will perform verification of server certificates using the built-in certificate verifier with the Microsoft Root Store as the source of public trust. When this policy is set to disabled, Microsoft Edge will use the system certificate verifier and system root certificates. When this policy is not set, the Microsoft Root Store or system provided roots may be used. This policy is planned to be removed in Microsoft Edge version 121 for Android devices when support for using the platform supplied roots is planned to be removed. This policy was removed in Microsoft Edge version 115 for Microsoft Windows and macOS, Microsoft Edge version 120 for Linux, and Microsoft Edge version 121 for Android when support for using the platform supplied certificate verifier and roots was removed.