i have both a curved and flat screen on my desk and honestly there is little difference once i got used to it.
i don't notice the curve anymore but the viewing angle is slightly different with the sides aimed inward toward me. i like it but would not pay a lot of extra cash for it. my screen is an AOC C24G1 which i got for a great price on sale. otherwise i would have not bothered.
i could see a benefit if you gamed on multiple curved screens but never done it to try out that theory
and just FYI curved screens are just as fast as flat ones from what i have seen. mine is 144 hz