https://bugs.winehq.org/show_bug.cgi?id=57285
--- Comment #8 from Rémi Bernon rbernon@codeweavers.com --- Created attachment 77562 --> https://bugs.winehq.org/attachment.cgi?id=77562 possible workaround
Hi! Thanks for the bug report. It looks like you're using KDE, and fwiw KWin maximized window state is known to be broken (see bug 57465), and has been like that for a long time although it was sometimes working a bit by chance.
Could you try the attached workaround in Wine which I believe could help and confirm if this is the same issue?