These days all the PC gamers demand a high-frequency refresh rate monitor with HDR support. A monitor with a high frequency of refresh rate such as 144 MHz (or more) is going to give you much smoother gameplay. Such monitors do not have problems of motion blur or user input lagging.
Similarly monitors that support HDR offer a much more comprehensive range of brightness, contrast and colors. Such monitors can display the images in much more real life colors. The most common standard for HDR support in the PC monitors is HDR10.
But just having a monitor with HDR support is not enough. You must have device drive software, operating system, and the games (or other graphics software) that also supports HDR.
On a Windows 10 and Windows 11 system, you can use a freeware tool called HDRTray to see the HDR status of your PC. It is a portable application and runs on Windows 10 and Windows 11. As we run it, it places its icon in the system tray (notification area) of Windows desktop. If HDR is supported and enabled, then it shows HDR in the system tray. If HDR is not supported or not enabled, then it shows SDR in the system tray.
If your monitor is capable of displaying HDR content, then you can right-click on this icon in the notification area and chose to toggle on or off the HDR. This saves the user from opening the Windows Settings app and then finding the HDR related settings.
If you right-click on HDRTray icon and it displays “HDR not supported”, then you have to get a new HDR supported monitor. If it shows a message “Sorry, HDRTray only works on Windows 10, version 1803 and above”, then you have the update your version of Windows.
With HDRTray, you will never forget to turn on HDR mode on Windows before playing games or using graphics editor applications.
You can download HDRTray from https://github.com/res2k/HDRTray.