But the developer doesn’t need to provide support if you opt to use your own data storage and the storage itself fails. Google would be the one to contact if Google drive has an issue.

Well yes, but that’s not how your average user thinks and acts. They will either a) contact you as the developer of the app that doesn’t seem to work and when your say it’s not your fault give you bad reviews or b) directly give you bad reviews.

You either don’t know what binary search is or you completely missed the context of this conversation