The RX 5500 XT and RX 5700 require the latest release of Windows 10 20H2. Windows fully supports connecting displays to the HDMI and DisplayPort ports. However, a Thunderbolt 3 or USB-C display connected to the Thunderbolt 3 port is not supported by Windows at this time. You may use this port as a 10Gbps USB-C port to connect a USB-C device. Apple does not support eGPUs on Bootcamp.