By chordal editing, I just meant pressing combinations of keys at the same time. Lots of editors support this to some degree, but most (AFAIK) are either modal, or don't support keyboard-driven workflows.
One of the other classic emacs jokes is about how it can take key-combinations to extremes, e.g.
https://xkcd.com/378/I agree that I'm looking for a tiling window manager. This is what EXWM (the Emacs X Window Manager) is.
The problem with things like i3, is that it is not integrated enough with editing and navigation of files.
I wish there was more in this space, as Emacs has some limitations for this purpose (e.g. multithreading), but AFAIK emacs stands alone.