GTX 1650 SUPER is the budget king for Plex transcoding
Amazon.com: ASUS GeForce GTX 1650 Super Overclocked 4GB Phoenix Fan Edition HDMI DP DVI Graphics Card (PH-GTX1650S-O4G) : Everything Else
I was able to achieve almost constant 60 fps (lowest 45 fps) on CyberPunk 2077 with my ROG Strix G15 GTX 1650 after upgrading to dual channel ram and set the game
Amazon.com: ASUS Dual NVIDIA GeForce GTX 1650 Mini OC Edition Gaming CSM Graphics Card (PCIe 3.0, 4GB GDDR6 Memory, HDMI, DisplayPort, DVI-D, for Intel NUC 9 Extreme Kit, Intel NUC 9 Pro