It's close to that, but not quite. Android is a bit more centralized, so apps are pretty much guaranteed to work on all versions of Android, while on Linux you

It's close to that, but not quite. Android is a bit more centralized, so apps are pretty much guaranteed to work on all versions of Android, while on Linux you need different packages for different distros and so on. But I do think Google could do a lot more to centralize and standardize the platform and the app ecosystem.