https://bugs.winehq.org/show_bug.cgi?id=42330
--- Comment #52 from Xavier Sellier xsellier@gmail.com --- There is another workaround (100% working this time): Add the following to the steam launch option :-StraightIntoFreeMode -online Meaning GTA V will launch into the Online mode directly. You will have a black screen, but about 1 minute (while loading the online mod) you will be able to enter the game (Alt + Enter).
I hope it helps !