Steam removed the part of the agreement that told you whether your payment is handled by Valve Corporation directly or by its subsidiary Valve GmbH i.L. (a German entity, whose 'i.L.' designation means it is in the process of being wound down/liquidated). This doesn't necessarily mean your data is now shared more broadly, but you can no longer tell from the agreement which corporate entity is handling your card and payment information.
“Payment processing related to Content and Services and/or Hardware purchased on Steam is performed by either Valve Corporation directly or by Valve's fully owned subsidiary Valve GmbH i.L. on behalf of Valve Corporation depending on the type of payment method used.”