Try messing around by forcing gpu drivers to vulkan.
If I'm not mistaken, you open the launcher, change version, close launcher, add flag for skipping launcher and start the game.
Also, Proton tricks as the other comment should help too (installing the .NET version using it, as it install all data in the emulated environment)
It's interesting that so many religions from all around the world has a 'big flooding' story in it.