https://bugs.winehq.org/show_bug.cgi?id=39655
--- Comment #4 from Adam Bolte abolte@systemsaviour.com --- For me it's definitely a crash. An epic crash! It doesn't show a Wine crash dialog box, and it even takes out Steam! I have to run `wineserver -k` and launch Steam again every time it happens. There's no Enemy Front background process left running to continue to play audio.
I've never had any other crash take out Steam that I can immediately recall.
FWIW, I had the Steam in-game community option disabled when I was testing.