It also means that the rendering will potentially be different on each platform given they all use different native webviews (and there's no "native" webview on Linux but WebKit-gtk is the most widely used one)

Thanks! I'll be checking this out later

My hope is that something like Servo gets good enough to be included, especially if it's tree-shakable so you can only include a subset of the codebase. I don't know if that's a goal for either projects, but it would be cool - the default webviews can be quite lacking so currently you need to use a restricted set of HTML/CSS/JS to guarantee compatibility.