The caveat is that Powershare is low wattage. You really need to pair it with a Powerwall and have an average draw less than the limited capability of the car to supply it.
To power a house directly from an EV, the main options now are the EV trucks -- Lightning, Silverado, Cybertruck all can have this ability, 240V 30A typically
It's not _that_ low, from the Tesla site: https://www.tesla.com/ownersmanual/model3/en_us/GUID-E261502...
> Model 3 provides a maximum draw of 11.5 kW.
You can't run your heating or air conditioning at full tilt, but otherwise that will get you at lot, this is 240V at ~45A.