https://wccftech.com/doom-eternal-mod-removes-red-tint/

A very useful DOOM Eternal mod has been released online, removing one of the most annoying features in the game.

The mod allows players to remove the red screen tint when in low-health. This made playing the game very annoying, as the red tint makes it difficult to see the action properly. You can download the mod by heading over to Nexus Mods.