Portability and accessibility do work in tmux's favour which a tiling window manager (I was on ion3 for ages) cant emulate. I probably have a weird development style but with tmux/ssh and the same session I can..

* Work from my desktop

* move to my laptop on the couch

* nick off to a cafe (well perhaps not atm) on an ipad.

* keep tabs on long running processes on my phone and termux.

all with a consistent interface. I think it's worth getting a working knowledge up.