"When you connect your headset to the pc, It prompts you to allow access to Data... you need to disable data access in order to the cable to work as a charge. "
https://forums.oculusvr.com/t5/Oculus-Quest-2-and-Quest/Quest-2-is-draining-while-linked-to-PC-Need-a-solution/td-p/849836/page/2
Will try this and advise.