Earlier quoted context omitted.
The NACS standard still only supports single phase power. It was the electrician who installed my home charger that said it is why they weren't in Europe homes.
NACS supports either one or two phases for AC charging which would be used in most home chargers. A really high power charger would use DC with the AC/DC conversion happening before (and that could be from a three-phase source)
Lots of european homes have 3-phase service. I have 3-phase 400V in my flat.