I never understood running apps in full screen. Unless it's an IDE, Video Editor, or some other app with tools filling all nooks and crannies, I want windows that fit the content. I don't want to launch a text or document editor in full screen, read a PDF in full screen. Typically I don't even want to watch a video full screen. I also generally don't want tiling. I want to arrange windows with parts peeking out behind other windows to reference while I'm working on something else. I want some sense of "space" related to where I left a window.