Securing internet traffic from devices with identity-aware web filtering and threat protection
No.
The documented Microsoft authentication endpoints include login.microsoft.com, login.microsoftonline.com, and login.live.com. The provided Microsoft and Azure endpoint allowlists do not include login.win.
For enterprise outbound allow rules, permit the documented Microsoft sign-in endpoints and related authentication/CDN endpoints required by the specific service being used, rather than login.win.
References: