Any help would be massively appreciated. You need two devices. Check with Lenovo on the docking station. For source switching, you'll need a KVM switch. I don't know of any single device with does ...

The Lenovo Laikuzhi Life Type-C 12-in-1 Docking Station has been released via a crowdfunding scheme. The crowdfunding price of the gadget is 269 yuan (~$37) but more details are lacking at this time.

To power the Wi-Fi 6/6E connectivity the dock uses for its high-resolution displays, Lenovo and Synaptics ... integrated into a Targus wireless docking station that will feature 100W PD ...