https://wccftech.com/doom-eternal-reshade-improvements/

DOOM Eternal is one of the best looking games released in recent times, but the game developed by id Software can be made to look even better with a ReShade preset that has been released recently.

The Carmack's Eternal ReShade enhances the game's visuals with improved colors and visual effects. A new set of comparison screenshots highlights how much the visuals are actually enhanced, and the difference is quite noticeable. The first screenshot of each set shows the game as it looks with the new preset.