Sticky lower Browser Chrome on Samsung Galaxy devices

I have found that when I use my Flutter app powered by this plugin as its frontend on Samsung Galaxy devices I end up seeing a toolbar at the bottom of the screen that partially hides the actual app screen

There is an apparent fix for this as [discussed here](https://allthingssmitty.com/2020/05/11/css-fix-for-100vh-in-mobile-webkit/). However, I have understood that this happens in the first place because Samsung Galaxy devices use Samsungs own Internet browser by default. What is happening under the hood in flutter_webview_plugin? Does it **always** use the OS supplied webview which defaults to Chrome Webview on Android or does it somehow get hoodwinked into using the one derived from the Samsung browser?