I don't really need this but... I have a 4k HDR 144hz display (LG C5 OLED) and I've verified that 144hz is turned on; and a GTX 1070 (that everything I can find says will do 4k HDR at 144hz over HDMI) ...
Windows Operating System supports usage of multiple monitors at once. The OS can also work with HDMI-connected TV so if that’s what you want, you should be able to easily do so. However, some people ...