I guess the real culprit is f6b26b302d9c0c9760b47b881ce6667f8f021424.
@Joshua-Ashton can we revert this? The whole depth-stencil hazard thing is clearly not working, and was only masked by the fact that we were using GENERAL layout for all depth buffers.
proton 5.4x1 2020-03
As of 1150121, the game looks like this:


With the previous commit, the game looks normal:
I'm well aware the game has some issues right now, but the problem is reproducible using an old trace from Joshua-Ashton/d9vk#99.
Software information
Grand Theft Auto IV, latest version that has been released yesterday.
System information
Apitrace file(s)
Log files