To add to the point above: In my experience, the Samsung Odyssey Neo G9 G95NC 57-inch Dual UHD is the ultimate non-OLED choice to avoid burn-in while fully utilizing your 4090 rig.

Honestly, Ive been through a bunch of setups for sim racing over the years and while the 4090 is a beast, you dont always need to drop 1500 on a screen to enjoy it. If the burn-in stuff makes you nervous, you should skip the OLED G9. In my experience, the text clarity issues are real if you do any productivity work too. Check these out instead for better value:

• Samsung Odyssey G9 G95C 49-inch Dual QHD 240Hz VA
• Much cheaper than the OLED version and you wont stress about static HUDs.
• LG UltraGear 45GR65DC-B 45-inch DQHD 200Hz
• Often goes on sale for way less than the Alienware or Samsung flagships. Id personally go with the VA panel G9. The contrast is still solid for racing and you save enough cash to buy a better wheel or pedals. If you have more questions about mounting them, just ask... I've tried many different stands too.

In my experience over the years, I've found that the most expensive display tech isn't always the best investment for every user. A few years back, I invested heavily in a high-end OLED for my own sim rig, thinking it would be the ultimate experience. Unfortunately, the static HUDs in the racing titles I play caused visible retention issues much faster than I expected. It was a stressful way to game, constantly worrying about screen life. I eventually decided to switch back to a high-quality IPS panel and the difference in peace of mind was immediate. The text is much sharper for daily tasks and the colors are still vibrant enough for a great racing experience. While the 4090 is a powerhouse, you dont necessarily need the most fragile panel tech to enjoy what that card can do. Regarding size, I tried dropping down to a 34-inch model for a while but I found it was a massive step down for racing. You lose that peripheral vision that makes the 49-inch screens so special. I ended up staying with the larger format but opted for a more traditional backlight technology. Moving to a more durable, high-refresh display saved me quite a bit of money and eliminated the anxiety of hardware degradation. Its often better to prioritize a panel that stays consistent over several years rather than chasing the deepest blacks at the cost of longevity.