That literally gives zero information about whether it's processed as debit or credit. There are very different sets of rules depending on which one it is.
The technology we've built is agnostic to debit or credit -- it really depends on your use case. That said, force posts (or transactions cleared without an underlying authorization) can happen on any card type.
For what it's worth, we have an API to initiate disputes (which you would be able to on a transaction initiated without a valid authorization) which you could use to recoup funds.
In my observation debit issuers make it much harder to do chargebacks.
https://usa.visa.com/dam/VCOM/download/about-visa/visa-rules... here's a 1031 page document with all the technical rules from Visa. You'll note there are entirely different sections for debit and credit.