https://bugs.winehq.org/show_bug.cgi?id=20054
florian.will@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |florian.will@gmail.com
--- Comment #15 from florian.will@gmail.com --- Probably related to this bug, "ZUSI 3 - Aerosoft Edition" fails to start the "ZusiDisplay" component since a recent game update. That game update changed ZusiDisplay to use dotnet core instead of dotnet. It also installed dotnet core into the game's proton prefix on first launch, so I'm probably using dotnet core instead of wine-mono now.
Message boxes pop up telling me "Fehler beim Erstellen des Fensters! (Font 'Microsoft Sans Serif' cannot be found.)", and the first sentence translates to "error creating the window".
It turns out that the "dotnet -> dotnet core" migration guide [1] by Microsoft mentions that the default font for dotnet core is now "Segoe UI 9 pt" instead of "Microsoft Sans Serif 8 pt". It recommends to manually change the font back to "Microsoft Sans Serif 8 pt" if an application depends on that previous default setting. So I guess more and more legacy applications will explicitly require Microsoft Sans Serif as they are ported over to dotnet core.
[1] https://docs.microsoft.com/de-de/dotnet/core/compatibility/fx-core
So I feel like having a "Microsoft Sans Serif"-named font with similar metrics included in wine might be a higher priority now.