Where PC displays ought to be in 2021:

At the high-end: 6K or 8K 120Hz 1000 nit, 12-bit HDR in various sizes from 27" up to 40" where this kind of resolution makes sense.

At the "enthusiast" or "gamer" tier: 4K 240Hz with 10-bit HDR, either 1000 nit LCD or 600 nit OLED. (From 2022, RGB OLED with 1000 nit brightness)

In both cases wide-gamut colour (Display P3 or wider) should be available and "just work". Ideally much wider, near Rec.2020. I still use a 8 year old(!) monitor with 100% AdobeRGB coverage. For some bizarre reason, this is a "high bar" that 99% of currently sold PC monitors don't reach, despite quantum dot filters being a thing since 2013(!!).

This isn't wishful thinking, this is all existing, off-the-shelf technology widely available elsewhere in the general consumer market -- just not for PCs.

So for example, my iPhone has a wide-gamut, 1000 nit HDR OLED screen with 120 Hz.

LG sells an 8K OLED with 120 Hz, and 240 Hz 4K televisions are commonplace. Most TVs have 1000+ nit HDR, and OLEDs will reach about 1000 nits in 2022.

Most of the above is simply unavailable in the PC display world, or is only available "piecemeal". I just got a laptop with an OLED 4K HDR display, but it is limited 60Hz. This isn't an input cable limitation, it's a built-in display with a 5cm long cable!

There are exactly zero 120 Hz PC OLED monitors available on the market under 40" (i.e.: not a re-purposed television). None.

Back to my laptop: HDR "works" in the checkbox tick sense. The panel is physically very good, but even on Windows 11 with the absolute latest drivers it's hit & miss:

- Windows is not colour managed by default. Still. In nearly-2022 era. Apps randomly look correct or have visibly "stretched" gamuts. Most things are limited to sRGB, and can't use the display native gamut, despite wide-gamut support for the UI being available as far back as Vista.

- HDR content is randomly correct by accident (YouTube), overbright and clipped horribly (also YouTube for some reason), or way too dark (NetFlix).

- Dolby Vision doesn't work at all. The "Dolby Access" app is abandonware that does nothing. (Again, both my TV and my phone can play DV content!)

- Games don't work in HDR at all on the internal OLED display, but do work with an external TV plugged in. So the GPU is capable of it, it just refuses to work!

- The panel is 10-bit capable, but only if HDR is turned on.

- With HDR on the screen stays black when the laptop resumes from sleep, making this a no-go for general use. This is a known issue that has persisted through at least three semi-annual releases of Windows, with a WONTFIX response from Microsoft!

This is where were are on the eve of 2022: A super-high-end Windows computer screws up the colours for apps, can't reliably play HDR, refuses to for games, and dies if HDR is used before it goes to sleep. It doesn't matter anyway because HDR displays are rarer than hen's teeth and won't be available until 2023 at the earliest, some time after TV manufacturers will stop making LCDs entirely and switch 100% of their production over to OLEDs.

Don't worry, the old LCD lines will be used to make faded, sub-sRGB displays for us poors.