I have been researching 'SharedShippingBillingPage' feature in AuroraStorefrontAssetStore but I haven't got much, IBM's info center is quiet about it.
Is there any link that can be useful in this regard?
I checked in db that this feature is enabled by default but I don't want to use it, I want to disable it. Our requirement is to have separate billing and shipping addresses in our application.
How to do it? Does IBM provide any way to get separate billing and shipping addresses from user and save them?
Have a look at the Store Management tool and see if this feature is available to toggle there - it may depend on your installation FP version.
If not (not all features are exposed), then have a look at a database level. See this related tutorial that explains a little about the involved tables.
As a quick check, see what this gets you:
And to disable (for all stores):