I would definitely use it to play rdr2 as the world R* created deserves to be seen in as good a quality as possible. That great monitor would allow me to do just that!
I will finally be able to play Monster Hunter World at 144 FPS with that monitor, the game would be even better with the smoother movement. I also look forward to playing Dying Light 2, and it will be so amazing!
Many games now (replay Mass Effect series etc) and play games coming soon (Pantheon rise of the fallen etc). Never tried a curved monitor so that would be quite a fun ride through games. Thank you my friends.