I've gravitated to the use of a 43" 4K TV as my main monitor (and have a few others scattered about for auxiliary purposes) and when hacking hard have a full sc

I've gravitated to the use of a 43" 4K TV as my main monitor (and have a few others scattered about for auxiliary purposes) and when hacking hard have a full screen emacs window split into lots of panes, vertically and horizontally a la Mondrian. I am confused about how others get anything done without a similar configuration! This new feature seems like it will be great fun.