https://bugs.winehq.org/show_bug.cgi?id=41585
--- Comment #4 from fjfrackiewicz@gmail.com --- (In reply to C0rn3j from comment #3)
I am launching the game through Steam with the only override being gameoverlayrendered (disabled)
Hmmm, can you try running the game's binary directly but with Steam in the background by going to the directory where the game's binary is located and running it via terminal? Perhaps some Steam launch script is adding some flags or arguments that should not be there, just a thought...