Questions about iA Writer and Google Docs Integration

I just want to ask about both the Google Docs and iA Writer integrations on Ghost.
My large concern with these two is how things like adding images would be handled.
Iirc using html on Google Docs is impossible… but I could be wrong.
While editing within Ghost, you’d have to add another block every time you want to include an image. I wonder if that poses annoyances.
I am using Windows too, if iA Writer has differential features between Windows and Mac.
I’m not too worried about having the feature to publish directly from either platform. I just want to work less within Ghost’s editor, which is ridiculously annoying while using html.