https://bugs.winehq.org/show_bug.cgi?id=57053
--- Comment #1 from mnv monovar@protonmail.com --- Just wanted to add some additional details:
To get the fullscreen toggling to work in the older wine versions (9.11 and lower), the wine prefix needed gdiplus (installed it with winetricks) and renderer=gdi set. This allows the fullscreen toggling (pressing F key twice) to work correctly. But 9.12 onwards, toggling fullscreen makes some of the UI become invisible after you un-fullscreen it.
I had said it also becomes unresponsive, but actually the UI seems to still be responsive. But it's invisible.
I'm on Linux Mint XFCE.