I have an acer predator PH315-53-75N8 and bought a M27Q Gigabyte monitor, which is a 2k 165Hz monitor. When connected via HDMI 2.0 cable, windows is saying the recommended resolution is 4k and refresh rate cannot go further than 60Hz. I can switch to 2k resolution but it gets blurry and i also cannot go further than 60Hz.
I also use the monitor on my desktop and it works perfectly. Not blurry 2k as recommended and 165Hz.