As you may know, Visual Studio 2019 16.3 includes a new XAML Designer for WPF .NET Core. We worked closely with the Visual Studio team to address as many issues as possible and to seamlessly integrate our v19.2 WPF .NET Core control set with the new designer.
In our upcoming release (v20.1), we continue to enhance the design-time experience for those targeting the WPF .NET Core platform....
The DevExpress Team
6 May 2020