Since all I've worked on for the last three years is the infrastructure, and not the binary that lands on your desktop/phone, I'm not really qualified to answer

Since all I've worked on for the last three years is the infrastructure, and not the binary that lands on your desktop/phone, I'm not really qualified to answer that. (Which is just a fancy way of saying I've got no earthly idea :)) But since I've seen @bengoodger in this thread, maybe he can answer your questions.