The car EV market is standardizing to NACS connector. Any car with that connector (and those with adapters) can charge. There should be no incompatibility. The e-bike industry needs to follow suit, but take that one step further. Standardize on the battery connector, the chargers, and also on the batteries themselves (kind of like how we have size AA and AAA and C and D).
All these manufacturers complain that the reason bikes are still expensive is because of the batteries. Well nothing will drive down the cost more than one standard type of cell and only a handful of different sizes. Only one type of connector and every charger should be the same.