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While several states including Oregon are going a different way, the NEC is doubling down on upstream GFCI in front of an EVSE.  Prior to this change it only receptacles required an upstream GFCI.  The code change is:

625.54 Ground-Fault Circuit-Interrupter Protection for Personnel.

All receptacles and outlets installed for the plug connection of electric vehicle charging shall have ground-fault circuit-interrupter protection for personnel.

Where "and outlets" means hardwired EVSE.  The ground fault detection inside OpenEVSE would then be downstream of the building GFCI.  Public comments are due August 28th 2024, on this section 625.54.