Battery-only and screen-and-battery assembly guides coexist; the USB-C port is soldered to a replaceable daughterboard.
What to check before buying
Screen and battery
iFixit's assembly guide names the screen, battery and frame as one replacement unit. A battery-only guide exists too, so the quoted assembly should be clear.
Charging board
The USB-C socket is soldered to its daughterboard. The documented repair replaces that board rather than the bare connector.