Searching for 120Hz+ IPS Display

[ShikuTeshi]

I'm getting rid of my MSI Optix MAG301CR monitor due to having really really bad dark color transitions that cause extreme smearing. I'm sure it's due to the VA panel in conjunction to the default overdriving of the display. It goes up to 200Hz but I reduced it to 120Hz in hopes of mitigating the effect but it is still horrendous.

Thus I'm now looking for a really sharp looking IPS display. I'm a running a GTX 1080 but I have plans to get an RTX 3080 (ti?) whenever the gods allow me. But that puts me in a dilemma of do I get a 1440p or 4K display and run like ass until for some months until I get a GPU upgrade. Or do I stick with 1008p and run fine for now?

I really want a 4K option since over time I've been noticing aliasing in games that just don't implement a good enough anti-aliasing option. But I'm open to anything under $1000 from Newegg or Amazon since I plan to finance through them if I end up going with an expensive option.

The most important features are...
120Hz or more without any overdriving. I'd like the image to be as sharp with no noticeable smearing. (reading white text on a black background while scrolling/moving it around should be possible.)
An IPS display since I like my colors. This was my reasoning for accepting a VA panel before since it boasted viewing angles and really good sRGB.
Ultrawides are fine. I really enjoyed the MAG301CR in the applications it did well in. If it's curved then I'd like to keep it minimal. The MAG301CR was 1500R and I liked it quite a bit.

At minimum I might go with a 1440p option. At best a 4K option.
I'd also like some opinions on downscaled resolutions or increased windows scaling on a 4K display. I play some older games that don't scale past 1080p and am a little concerned of playing them on higher resolution displays. If either dropping the resolution of the monitor or increasing the UI scaling would work well enough to keep playing such games without much issue?

[Entropy.]

A 27GN950-B should go for $800 provided that it's not out of stock or being scalped. 4k, Ips-great color accuracy, HDR600, Gsync, 144hz. 

[TheBean]

I would highly recommend reviews from HardwareUnboxed. They test a LOT of monitors so you can get a good picture of which is good/bad. 

[Helpful Tech Witch]

If you can go down to 1440p, then a oddessy g7.

[macktruck6666]

I was literally going to post this exact topic

I got the MSI MAG321CQR and its utter rubbish in the dark colors. I literally want to punch the screen because it makes me so mad.

Is it possible to find a good 2k IPS monitor for $400-500

 there anything

[ShikuTeshi]

I don't know about 2K but I was looking at 4K and an LG 27GN950-B for $800 looked really solid.

But I instead opted to get (back order) an LG 34GN850-B 1440p Ultrawide after viewing Hardware Unboxed videos. I don't think I can leave the ultrawide experience. Hopefully I don't have to wait too long on it.
I am a little concerned about both products getting reviews of bad units on arrival. But hopefully I can make an easy return if it goes bad.

[ShikuTeshi]

I'd like to give an update. I love this LG 34GN850-B.
Thanks to @Brok3n But who cares? for suggesting the LG that got me searching their products
and @The_Vaccine for suggesting looking at Hardware Unboxed videos. I came across RTINGS afterwards and both sources gave the 34GN850-B their #1 in 1440p Ultrawides.

It's a hefty price tag but I think it was well worth it. As expected the games I used to be able to run at ~80-110 FPS now run around ~60 but it's bearable due to variable refreshrate.
But those games that have TAA make it pretty much impossible for me to notice any level of aliasing which makes me happy. It's also a cut lower than 4K so it would've performed worse if I had done with a 4K.