i can assure u for the desktop wireless charger it's the charging adaptor u use. if u use the original Xiaomi 120w wired charger plugged into the xiaomi desktop wireless charger. it charges at 50w wireless no problem.I have received my xiaomi 13 pro replacement and I still have the same problem maximum wireless charge at 30w
the only thing pending still is the 50w xiaomi wireless car charger pro, it still charges at 30w only even with the 100w xiaomi car charger plugged in oh well if it's urgent in the car i can plug in wired and get 100w charging so not too bad