This is my setup in the light and in the dark, my monitor is a LG Ultragear 27GN800-B 1440p 144hz, CPU: Ryzen 5 2600 (soon a 5600x) and my GPU: RX 580
Amazon.com: VIOTEK GN27DB 27-Inch Curved Gaming Monitor, 1440p 144Hz Samsung VA Panel, FreeSync GamePlus FPS/RTS – VESA (Black) : Electronics
Success! macOS big sur, I9 9900k, RX 580 8Gb, 32Gb 3200mhz CL16, 3 x 1440p @ 144hz DP, triple boot with windows 10 (2004) and pop os 20.04 and RTX 2080. : r/hackintosh
Radeon RX 580 in 2020 l 1080p l 1440p l - YouTube
RX 580 GPU drops supported 4k@144hz monitor refresh rate to 60hz when adding another monitor : r/buildapc
Is RX 580 able to play at 1440p 144hz with this desktop? | Tom's Hardware Forum