https://bugs.winehq.org/show_bug.cgi?id=55513
--- Comment #15 from Jeff Smith whydoubt@gmail.com --- I'm not entirely familiar with how all the moving parts within wine-mono, but it appears that winforms was forked from an early preview release of .NET Core 3.0 around May 2019. The last commit to Cursor.cs [1] was in May 2019. There was a change in upstream [2] to avoid the autobox/unbox in July 2019.
I'd be tempted to switch to using the Icon class from .NET Core, as we've done with System.Drawing.Printing classes.
No clue how much work that is, but doesn't sound like a bad idea.
[1]: https://github.com/madewokherd/winforms/blob/main/src/System.Windows.Forms/s... [2]: https://github.com/dotnet/winforms/commit/b5112e1a79e1a00de9c714a7c96801320c...