As in not starting an X server? No.
As in most of the time the window focus is on a terminal? Yes.
In my computer, 90% of the time there are only 2 types of windows open. 1 is the web browser, and the other is the terminal. Sometimes I open up Emacs to read my mail or write some notes in org-mode, but my text editor of choice is vim in a terminal, not even gvim.