Wow. I was not aware of this before actually reading your post. Curvature of 1.9 m means, that the best viewing position is 1.9 m from the screen, which is still farther, than I usually sit while working. I am using it mostly for office work and I find the curvature perfect replacement for two monitors.
Btw. I am pretty sure, that Samsung S34E790C has a curve with radius of 3 m (3000R), which puts the monitor somewhere in the middle.