The Thunderbolt 4 Ports on this dock will support display at a maximum resolution of 4K at 60Hz. For your current setup, you will need to use a USB-C to HDMI cable. We would highly recommend the following: 

• https://satechi.net/products/aluminum-type-c-to-hdmi-cable-4k-60hz?variant=35106597449 

Please note: Dual display is not supported on Apple M1 or M2 Macs.