Question about Samsung LC49RG90SSRXEN

I have a RTX 2080 and depending on the game I have between 90 and 240 FPS, so it depends on what kind of game you are playing, e.g. playing Modern Warfare or similar at 100 FPS is difficult. But you can set the resolution to 3840 x 1080 so you could have more FPS.

Or you operate the monitor only as UWQHD or WQHD, i.e. black bars on the outside, or with a programme you make virtual monitors out of it and have TS / Discord or I don't know what on it.