For the same reason that a netbook/Chromebook is probably enough for most people: users rarely install native apps on laptop form factors these days - apart fro

For the same reason that a netbook/Chromebook is probably enough for most people: users rarely install native apps on laptop form factors these days - apart from the "essentials" like an office suite, and possibly specific programs they use to get work done (image/video editors etc.). A browser is one thing that users will go out of their way to replace, making it a pretty attractive vehicle for stuff like this.