[deaddodo]

.net Core doesn't supply WinForms, but WPF is the far more common paradigm for Windows apps now. WPF is supported by projects like Avalonia on Linux. There are also a few other major alternative UI toolkits, more commonly used by cross-platform (vs Windows-exclusive) developers.

[Kwpolska]

.NET Core does support Windows Forms just fine, but it’s only available on Windows.