I have an RTX 2080 Ti and a high end Threadripper CPU. I can run Metro: Exodus on 1440p Ultra-wide with the Ultra graphics preset and RTX On at around 70-100 FPS quite happily.
However, I'm noticing really low resolution textures around the place. I have annotated some screenshots below (click the thumbnail to load the full-resolution images to see what I mean):
Are there any specific settings I should be looking at to fix this? Bumping the graphics level up to "Extreme" makes it better but it's still fairly obvious (and I lose about 20 FPS). It's breaking the immersion on an otherwise excellent game.