Hello @webaake, we're using one issue report per unofficially supported game title, and this reads like game-specific feedback, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/333#issuecomment-822000713.
Proton 5.13.6 - DxDiag always shows a message just after starting World of Warships in Steam. The message is (translated): "Usage: dxdiag[/whql :off] | [/whql:on] | [/t filename] | [/x filename]"
This is always when starting Wows and has been with version 5.13.6.
The problem is that it really seems to take a lot longer to start the game. Is there a fix for this in Proton? Can I edit some text file and tell Dxdiag to relax?
Wows/Steam/Proton works really wonderful so this is a small problem. I am very thankful for Proton and how well it works. So thanks for the hard work guys!
Other info: Ubuntu LTS 18.04, Nvidia 450.102.04