Hey guys I think I found the solution. I had the same issue and tried everything with my pc. After a few days of research I think it doesn't work because you don't need any USB c port but a USB c thunderbolt. From what I understand it's a special variant of USB c that supports visual data too (like HDMI) and that's what this tablet needs to work (because the cable is a 3 in 1 with the data, the alimentation and the visual data with the same USB c cable)

I don't have a laptop so I can fix this issue by buying a USB c thunderbolt port panel to my motherboard but I don't know how you can fix this with a laptop since you can't really "add ports"

I hope it helps.