Xbox Series X (4k tv or oled monitor)

[phillyman36]

Hey I have an Xbox Series X. I have a 4k Samsung television and a Asus 27 inch Oled monitor. Would you all suggest i run it on the 27 inch monitor 1440p @120hz or use the television and run it @4k? For right now im only playing Fortnite and just download Starfield. The oled 27inch monitor is hdmi 2.0 not 2.1. (xbox x still runs on it i guess it just doesnt down sample it from 4k 120 to 1440p). Thoughts