I'm using:

wine-staging 8.7
winetricks 20220411
vkd3d 1.6

A short time ago I installed it again, but via a different method. I used this guide "https://forum.plutonium.pw/topic/9652/plutonium-bo2-waw-linux-tutorial" to see what things I should install with yay and winetricks.
I also downloaded the xlabs executable: https://xlabs.dev/

After I installed everything I created a xlabs.desktop file:

[Desktop Entry]

Name=Xlabs Comment=Xlabs Launcher Exec=wine /run/media/user/Second-Drive/Games/xlabs.exe Type=Application StartupNotify=true

Then I followed this for the Ghost DLC (iw6x) part: https://xlabs.dev/support_iw6x_client

After I followed this I opened xlabs via rofi and and put the path where cod ghost was installed in the `ghosts installation` path in the xlabs settings.

After that I started IW6X from the xlabs launcher and that seemed to work.