Embedding web application to desktop applications has many benefits (and challenges). IE was available on Windows for a long time as a visual component / control. But IE is not always good enough. Chromium is open source base of Chrome.
GitHub - cefsharp/CefSharp: .NET (WPF and Windows Forms) bindings for the Chromium Embedded Framework
"CefSharp lets you embed Chromium in .NET apps. It is a lightweight .NET wrapper around the Chromium Embedded Framework (CEF)
CefSharp is BSD licensed, so it can be used in both proprietary and free/open source applications.
Similar solutions, also using Chromium and V8 inside (MIT license)