how to access internet urls on edge while VPN is ON in android/iOS enrolled device in MS Intune

how to configure the VPN profile for Android and iOS mobile devices to enable them to access the specific internet sites like SharePoint, power bi etc along with access to corporate intranet websites on the managed browser while VPN is turned on, using Microsoft tunnel gateway. please advise any solution to achieve this. How can a proxy configuration or .pac file be used to achieve this, if in case possible.