general
Because most of the chargers can charge each mobile phone (as long as it is a type-c port), it will only be limited because each mobile phone has a private agreement, such as the 65W charger to charge millet 11u, the highest is 27w.
Not universal, because different chargers meet different charging protocols, because Huawei and Xiaomi are using private fast charging protocols, that is to say, Huawei's charging head is unable to support Xiaomi charging treasure fast charging.