You didn’t mention the color space, which is most certainly 8bpc SDR at 30Hz.
Silicon Mac computers can totally handle 4K HDR 10/12bit RGB4:4:4 at 120Hz over TB4/5>DP1.4/HDMI2.1. But crApple decided to put limitations in macOS 14.1 Framebuffer.That way they can brag about it when they will unlock it as a marketing argument, exclusively for their next generation (M5).
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