Ah I think I see whats going on here after reading your comment again. The USB-C slot on the Hypno is power only it won’t provide a network connection between your Hypno and laptop.
The way to get a network connection and NDI working with the Hypno CM4-WS Pi version is to use an ethernet cable connected to your computer and to the Hypno. (you can also use wifi but I would recommend the wired option since its more stable). I use a usb A to ethernet adapter for this with my Mac.
BTW if youre looking to just record and not mess with network connections you may just want to get one of those sub 20USD HDMI captures and capture this way to your computer. This thread has info on tested/recommended USB Accessories that work with Hypno