Hello @Yuvaraj Madheswaran Sorry for the late reply.
Securing Storage Account using Private Endpoints during Logic Apps creation in Portal/VSCode isn't possible at this time since VNET integration isn't allowed yet in the Portal/VSCode experience. You might already be aware but you can still accomplish the configuration in Portal after creation of the Logic Apps resource in Portal: https://learn.microsoft.com/en-us/azure/logic-apps/deploy-single-tenant-logic-apps-private-storage-account#deploy-using-azure-portal-or-visual-studio-code
For immediate VNET integration during Logic Apps creation time, the Logic Apps team recommends an ARM deployment approach.