F1 2020
We run the game quality set to Ultra High.
Red Dead Redemption 2
We run the game with image settings manually set to High and the DirectX 12 mode enabled.
The Division 2
We run the game with quality set to Ultra, VSync disabled, and DX12 mode.
Shadow of the Tomb Raider
We use the DirectX 12 mode, anti-aliasing disabled, and the Highest quality preset.
1080P gaming is comfortable with the under-the-hood hardware. However, 4K gaming on the native UHD screen proves too much stress in demanding AAA titles. Low image quality settings at 4K or decreasing the resolution to 1440P is likely a better compromise if outputting to an external monitor, but Nvidia DLSS is also an option if the game supports it.
Nevertheless, 1080P gaming looked good on the OLED display and ran very smoothly at ultra-level image settings.