Question Monitor upgrade advice ?

[john0151]

Hi

I am needing a bit off advice. I am thinking off upgrading my Asus ROG PG278Q monitor. I have built my PC with:
CPU: Ryzen 5800X3D
GPU: RX 7900 GRE
RAM: 32GB

I don't do any work on the PC, just gaming triple and single player games.
I don't know whether to dip in to 4k gaming or go the OLED route?

Thankyou