LG Ultrafine 5k with Lenovo Legion Slim 7 AMD Ryzen Laptop?

I have the LG Ultrafine 5k (the model that you can use with iPad Pros, so I believe this is the latest one).

I picked up an Lenovo Legion Slim 7 AMD Ryzen laptop and am trying to connect it to the monitor. I only get audio and access to any peripherals connected to the monitor, but the computer cannot recognize that a display is being connected. Any advice?