That's interesting; I still use a Nexus 7 (2012) as my main mobile device. It's occasionally frustratingly slow, but I haven't found almost anything that wouldn't actually run on it. Is the iOS ecosystem worse in that regard, or was the iPad even older?
I agree with the Google Apps thing, though; my employer gave me a new but cheap phone with just 4GB of internal storage, and I'm always having to cleanup so I can install anything new. And an SD card barely helps, lots of stuff simply can't be moved.