You can even launch all this stuff (as native, windowed desktop applications) from desktop icons. It's a productivity tool, you are always complaining about needed better productivity tools (or about not being productive enough, I can't keep up with your life), so here it is.
So you can move your email, documents, sheets, accounts, and whatever other Google product you are working in out of the browser an onto the desktop. Instead of clicking from tab to tab in a browser, Kiwi lays it all out for you on your screen like you've got a bunch of programs open.