https://bugs.winehq.org/show_bug.cgi?id=24501
--- Comment #16 from Vincent Povirk madewokherd@gmail.com --- So far, very little code as been released in that WPF repository for .NET Core. When it's complete, we will likely be able to use it with wine-mono, with some modifications.
Some of the WPF code uses C++/CLI, so we may need Windows SDK tools to build it. Until we can build it using free software tools on Linux, it'll have to be a separate package.
The winforms code released for .NET Core is more complete, and it is included on the master branch of wine-mono (but the WebBrowser control doesn't fully work because Mono lacks IDispatch support, and there are probably other bugs I'm not awar4e of).