https://bugs.winehq.org/show_bug.cgi?id=45148
--- Comment #22 from Zebediah Figura z.figura12@gmail.com --- (In reply to Storm Engineer from comment #21)
It's clearly not a keyboard issue because when we change the setting Left Ctrl shows up properly as it should - only after the settings page is closed does it change to Right Ctrl.
And I'm not even sure if it's a Wine issue and not an upstream bug in Overwatch.
If it doesn't happen in Windows, there's almost certainly a bug in Wine.
Unfortunately it's very difficult to find where. Indeed it does not seem likely that there is a bug in the keyboard code itself.