Help with Mac Mini Color Mode

My Mac Mini M4 is currently connected to my Alienware AW3423DWF and can output only 10-bit YCbCr Limited when HDR is on. Is there a way I can change it to 8-bit with Dithering RGB Full Range mode with HDR still on? I even bought BetterDisplay, but it doesn’t show me the option to enable what I need. Any help is greatly appreciated!