I consume ACRO files using InterConnect / DecisionPower / DecisionPower Express / MultiVision. Does this change impact me in any way?

No! InterConnect®, DecisionPower, DecisionPower Express, and Multivision have their own internal way of accessing the ACRO APIs. However, these platforms are all undergoing transformation as well, so you will receive specific communications related to InterConnect migrations from Equifax®.