GitHub

A Full-Featured Mobile and Desktop Browser App (such as the Google Chrome mobile browser) created using Flutter and the features offered by the flutter_inappwebview plugin.

It is available on the Google Play Store at https://play.google.com/store/apps/details?id=com.pichillilorenzo.flutter_browser For Desktop builds, check the Releases page.
GitHub

omar-hanafy/webview_flutter_windows

A WebView for Flutter on Windows, powered by Microsoft Edge WebView2. The browser is rendered off-screen and composited into your widget tree as a regular Flutter Texture, so it behaves like any other ...