A:Answer Yes and no.
It won’t back up your iOS device. And it can only use the apple apps that have web support. That’s some of them but you probably won’t like the user interface.
However, you can use the Google apps, pretty much any of them, on your iOS device and share with your Chromebook.
IMO, the Apple apps and ecosphere is MUCH better and more pleasant to work with but Mac’s are also a LOT more expensive. Chromebook’s are CHEAP. It’s a trade off.