MY EXPERIENCE WITH CORSAIR FLEX.
I was one of the first to get my copy of the 45" 240Hz Corsair Flex (effectively, 32-in if 16:9) which replaced my 34" 175Hz Alienware AW3423DW (effectively, 27-in if 16:9). Both are 3440x1440 21:9 OLED panels, but as far as gaming and immersive gaming, the Corsair Flex destroys any monitor that have had before. For that size monitor you definitely need 800R otherwise the eye strain would be awful.
The Corsair Flex is not meant to be anything other than an immersive gaming monitor. The height and the adjustments are more than adequate. If you want something to mount on a wall or a stick then get the LG variant, but you're stuck to 800R.
Obviously, I'd love to have a 4K version 5120 x 2160 (5K2K .. okie dokie) with G-Sync Ultimate, 2000 nits, and 1kHz or at least 500Hz with <0.1 ms GtG) with DisplayPort 2.x. It's easy to say it's another thing to whip out your bank account and buy one, besides it doesn't exist (vaporware) and probably won't for three or four more years at least.
Bottom line, you'll not find a better gaming monitor if you like 32-in size screens in 1440p period. It's definitely mediocre but usable for text, and you have the option to make it a perfectly flat screen and any curvature between flat and 800R. The colors are extremely accurate, but the most impressive thing that you'll notice is the nearly instantaneous response. Short of wearing VR glasses this is the closest that you're going to get to an immersive gaming experience.
In addition, I like to add a note regarding the "5K2K" in normal rasterization you be lucky to break 100 FPS in the most simple AAA games unless you really turned down the graphic settings which completely DEFEATS your high resolution. I mostly play Call of Duty and I have to use (DLSS Quality) to ensure that I'm keeping 240 FPS on my i9-13900K and RTX 4090. Obviously I can turn off DLSS and hit 240 FPS but my 5% nevermind my 1% frame rate may drop down below 160 FPS in areas. My settings are pretty well maxed.
My next build will be as soon as Nvidia decides to release an RTX 5090, but I seriously doubt that will be 2024 and more than likely 2025 and by then hopefully more advanced monitor technology will be available to everyone.
CPU-Z J8P8UR / CPU-Z 9MM3CZ