Choosing between a flat or curved panel is mostly a matter of preference. Flat panels lend themselves much better to multi-display setups, with some of them can rotate 90 degrees to use in portrait mode.
If you’re planning on sitting a little closer to your monitor, a curved monitor might be better, especially if you don’t plan on adding a second panel. The curvature gives you a more immersive viewing experience, letting you see the corners of the screen without having to refocus on different parts of the screen. That curved design will also alleviate eye fatigue and strain.