Turning an iMac into a half-priced Studio Display - 9to5Mac
Just checking, still no way of getting 4K 120hz working in macOS on an external monitor that only has HDMI? I have the 14” M1 Pro and an LG 48CX and would
Use your iMac as a display with target display mode - Apple Support
Convert a 5K iMac into an External Display | Michael Schmitt | Mobile & Web Developer