They can be glitchy(in the sense they are not supported) in my experience not to mention the Page Down doesn't work in Android applications on a Chromebook(unle

They can be glitchy(in the sense they are not supported) in my experience not to mention the Page Down doesn't work in Android applications on a Chromebook(unless the app has implemented it which is incredibly rare). I'm just trying to say they aren't useful for many people but just not for me.