[ABS]

so all the invoices I now see automatically created for all my pre-existing subscriptions, with their own Stripe-generated Invoice ID are NOT being sent out, are they?

How can I make sure of that? They have nothing to do with the actual invoices we already generate, send our customers, pass to our accountants and so forth and should any of these "Stripe-generated invoices" be made visibile to our customers it would create a HUGE accounting issue.