Agreed. The problem is not the charger. There are many compatible chargers. The issue is the USB C plug that goes into the SurBook’s USB C port. Because of the recessed angle, there needs to be more exposed metal on the plug (or less plastic, to look at it from the other direction) for the plug to insert properly into the SurBook.
You could try the “shave plastic off the adapter” method or look for a USB C cable where the plug is longer (more of the metal connector exposed).