You could try the little reset hole on the bottom of the laptop.

I had some weird issues with my z16 none of the usb c ports were working and neither was the usb c dock.

I think there must have been some static buildup or something that triggered a surge protection or something but for me using the reset pin hole did the trick

Just have a read up on doing that for your model

It’s doesn’t wipe the laptop. Just resets the power circuit or something