220VoltsallCore

Problem is the panel is set for 4K with 3840x2160 physical pixels, so anything else than 4K and 1080p (which is just 1/4 of 4K) may look blurry due to not matching with the pixel layout
What's your GPU ? 

Depends on the specific panel and what's specifically being portrayed.
 
I'll try to explain this below...
 
On my specific 1440p monitor the majority of games look excellent but a few games you can notice a blur distortion when putting this 1440p monitor in 1080p fullscreen. A quick fix for this blur distortion in these few games when attempting 1080p resolution is to play in windowed mode with the black bars on top and bottom of the display.
 
Ever since I upgraded from a 1060 to a 1070 though I don't ever need to run games in 1080p resolution.
 
So for you, at 4K games are going to eat your fps simply because there's way more pixels to render than 1440p so instead of upgrading your CPU and GPU or downscaling to 1440p(where the blur distortion will show up in some games) I'd recommend buying a cheap 1440p 160-180 Hz monitor and use your 4K monitor as your second display. Here in the US you can find a great price of literally $150-$170 for a 1440p 160-180 Hz IPS monitor.
 
In the mean time, try more games at 1440p on your current 4K monitor. Some games you will find to look excellent and not have the blur distortion, but keep in mind that all monitors are different when it comes to downscaling.
 
Another thing is that certain games that you may have played on certain TVs with certain systems(whether it was a PC or a console) look even better on certain 4K displays because all displays also upscale differently, especially with certain consoles/systems. For example, I remember being completely blown away at how much better Battlefield 1 looked on my 4K monitor using a regular Xbox One S than it did on my 4K TV and one reason is because of how well the Xbox One S upscaled the specific game known as Battlefield 1.
 
Try this link and this link to see one aspect I just mentioned above when it comes to 4K upscaling. There's an enhancement and then there's a form of upscaling, which are two different things. And there's also HDR support.
 
It's these types of technologies that make what you see on different displays at different resolutions... different. So what I see on my displays might be completely different than what you see on yours.

No, as one pixel on 1080 would be exactly 2x2 pixels on 4k, while on 1440p its not even close to a whole number of pixels, it would have decimals. I believe there would be one 1080p pixel per 1,333333....x1,33333... Pixel on 1440p. If my math is right.

If the 4k monitor and 1440p monitor is the same size, 1080p should look worse on the 1440p monitor than the 4k one, theoretically.

Any non native res wont look good.
 
Then there is also size of the screen, distance from it,... to take into account

Thats because you are NOT running at native res.
 
At 1080p 1 pixel has to take up 4 pixels on your screen and that isn't perfect so the image becomes less sharp.

I have 4k monitor, 3072x1728, aka 80% look good to me in games. Change it in game and not in windows/drivers.
 
More and more games have seperate display resolution and game/render resolution. Have display resolution at native resolution and change the render resolution. It looks better.

In this case, I'd just use upscale then.

Id say first try 3d render resolution and disable AA before changing actual resolution. As going under native res of the display will result in an unsharp image compared to a display with that native res.
 
Keeping the native res and just lowering the 3d render resolution keeps the image sharp as can be and will lower the load on the gpu by virtually decreasing the rendering resolution in game.
 
 

Maybe try 1080p and set the scaling to integer in your GPU drivers. Higher non-integer resolutions can look way worse than lower integer resolutions.
 
From a quick google search the game seems to have a resolution scaling option. If that's true, that's your best option. Set it to 90% or 80% and the game will render at a lower resolution, but the UI will still render in crisp 4K.

I don't think HWi does that. 
I'd recommend Process Explorer

Just get any OLED panel if you want real HDR great experience.
 
I am not typing reason as you can find from internet why OLED is the best panel for HDR.
 
As for your topic reason "why does every youtubers buy high end camera and still just upload non hdr videos."
My own opinion - they are basically no reason to use HDR videos, 1st many user still have bad HDR monitor and this will impact the viewer, 2nd HDR need more bandwidth, this impact to low internet user and 3rd they are no visual experience really need for those YouTuber video to perform in HDR.

HDR is out is my expertise, all I know about HDR is that there are many forms of HDR and most of them are pretty basic and nothing special. As for contrast ratio, it's also out of my expertise. I just remember there's backlight and dim light gimmicks involved in certain types of contrasting and that native contrasting is more important than those gimmick types of contrasting. I also remember a VA monitor has a higher contrast ratio than an IPS monitor but a VA monitor also has ghosting issues when it comes to high frame rate gaming. I definitely notice things such as washed out colors or blacks not being the deepest blacks on my current TN monitor but these are not things I invest a lot of time noticing so it doesn't bother me when I spot them.

Colors do have an impact, but it's not the most important factor. And typically you don't need to worry about it. Any monitor that delivers good HDR already comes with a good color gamut of at least 90% DCI-P3, most are over 95% nowadays. All current OLED models at least sit around 97%. So what I'm trying to say: If you're looking at a decent HDR monitor, all of them have good enough color coverage.

Just released. 
 
https://youtu.be/XdLt3LegOKU?si=jtHg42KZReRlMOXz

Firefox doesn't support HDR at all, which is the main reason why I don't use it.
 
I don't know why you're so fixated on PCI-P3 color space coverage as your indicator of HDR quality. A monitor with 85% coverage and a good local dimming backlight will have better HDR than a monitor with 99% coverage and no local dimming.
 
Decent HDR monitors can be had for $280 nowadays, but it's only one specific model from AOC so far. All the other monitors that market HDR in this price range don't offer any real HDR capabilities.

I’ve explained above that yes, that is just starting. I also gave two examples. 
 
Yes, poor contrast ratio provides a terrible experience. A good ability to distinguish between light and dark is a core attribute to proper HDR reproduction. 

Nothing similiar to what you are seeing in Firefox. will try Chrome, thanks for information :). HDR is enabled in widnows and works in games and movies.


EDIT: shows HDR in chrome.

This Acer has some problems but gives a really good HDR experience. Its also more expensive than the AOC at $400 USD. 
 
Acer Nitro XV275U P3biipx
 
 

Yeah, that LG is edge lit and lacks a wide color gamut. Trust me, when you see HDR on a display really capable of displaying it, its game changing. Squinting at on screen highlights that would make you squint in real life is a pretty surreal feeling. 

Maybe they buy high end cameras for other reasons, like maybe the higher resolution (so you could crop a 4k image out of a bigger one or zoom in if needed), or  better low light sensitivity, bigger sensors, better video formats or options for dumping the recordings directly to a hard drive or through SDI or some other outputs , options for external microphones, better image stabilization, support for color corrections etc etc 
 
It's a bit of a shame that steam hardware survey doesn't include if the monitor is capable of 10bit , or HDR, if it's cheap laptop 6bit+FRC panel ,8 bit, 8 bit+FRC for 10 bit, native 10 bit etc etc 

1000% does, just needs to be uploaded as such. https://support.google.com/youtube/answer/7126552?hl=en 
 

 
Regardless, its not really going to catch on until monitors most people buy can actually play it back properly. The $200 stuff most are looking at simply can't do it, even it supports turning HDR on in Windows. 
 
Within the last couple of months though real progress has been made bringing truly HDR capable displays down in price, notably the AOC Q27G3XMN @ $280. 
 
 

YouTube absolutely supports HDR. Here's why very few use it:
 
The situation has improved somewhat since then, but there is a long road ahead still.

probably just turn it off when your not gaming

But text looks bad to read over saturated in chrome browsing. any option to change it