I’m running my Switch 2 in docked mode on my Gaming Monitor which is a “Predator XB3 with a Refresh rate of 240 Hz”. Here are 3 photos showing my settings…

1.	⁠On TV Resolution - I set it to 2160p (4K), Does this setting make sense and is it supposed to be set to that if I want 4K?
2.	⁠On RBG Range - I set it to Full Range because previously when I had it on Automatic, Everything looked badly bright with blurred colors, I have no idea why Automatic made it look that way unless anyone knows why
3.	⁠Lastly, HDR Output - I turned this feature off because when I had it set to “For all Software  or Compatible Software Only”, It did the same as I said before with the RBG Range

So with all that being said, What exactly is the real purpose of HDR? Because I always thought that it was a feature that was used to make the picture good look ending to record gaming with or something? Please excuse my ignorance but I would appreciate some help and advice. Also side note…When I first started adjusting the settings after I turned the Switch 2 on for the first time, Everything looked so weird like there was no backlight enough to make the colors and pictures look good. I know that the Switch 2 isn’t OLED but the settings just confused the hell out of me and I didn’t know what exactly I was supposed to be setting

Need some help and advice about the Switch 2 Display Settings