Some websites (e.g. those built with the wix website builder) don't really work without useWideViewPort on Android. If you don't use wide view port you will have a weird white bar on one or both sides.

As an example, here are 2 screenshots from wix.com:

How it should look (screenshot taken from Firefox):

How it looks in webview_flutter without wideviewport:

Therefore it would be nice if the webview supported setting useWideViewPort.