And you can analyze compatibility by below command.
"path to ApiPort.exe directory"\ApiPort.exe analyze -f .
After that, the report is generated:
You can check compatibility, and then you can ignore the warnings on the properties window of Visual Studio 2019 as your discretion.
.NET Core 3.0 is preview status yet. However, you can try it now. You can evaluate your WPF/WinForms apps on .NET Core 3.0.
.NET Core 3.0 is high performance than .NET Framework. And you can use self-contained deployment feature that is include runtime to your deployment package.(It means that .NET Core 3.0 doesn’t need on deployment target machine.)