Agreed. Samsung 25w charger can give Apple pd fast charge. Samsung 25w charger is to support Apple's fast charge agreement, Apple XR can support 29w fast charge, 25w is less than 29w is safe to charge Apple xr mobile phone, but do not exceed 29w, otherwise it will cause mobile phone battery bulge and short circuit. It is recommended not to use a charger with too much power.
No, Samsung's charger can not charge the Apple phone, the voltage power is not the same, it is not possible. Easy to damage the battery