under COMPATIBILITY the officially tested lenovo notebooks are listed, for the 65 watt power supply :
https://accessorysmartfind.lenovo.com/#/products/4X20M26277
USB Charger (USB Power Delivery): really practical, just one more power supply for on the road.
under Support the adapter details are still given. The power supply also supports Smart Voltage (USB Power Delivery Technology: 5V/20V). This means that modern SmartPhone with USB-PD compatibility can also be charged with the same power supply unit (5 volts).
https://download.lenovo.com/pccbbs/options_iso/65w_std_acadapter_usbc_4x20m26268.pdf
https://www.elektronik-kompendium.de/sites/com/1809251.htm
https://www.usb.org/usb-charger-pd
