i guess it really depends on how good your WM is. fundamentally it is very easy to recreate a tmux-like workflow in a terminal emulator that has windows and tabs. so why invest the time to learn tmux?
if for nothing else, it's a much nicer nohup(1).
because once i learnt it, it doesnt matter which terminal emulator i use, i have a full window manager solution _anywhere_.
but it's not a zero sum game for me, i have multiple windows to multiple hosts, not one giant tmux mess. in those windows i have tmux'ed sessions, which makes working on a given host much nicer for me.
if for nothing else, it's a much nicer nohup(1).
because once i learnt it, it doesnt matter which terminal emulator i use, i have a full window manager solution _anywhere_.
but it's not a zero sum game for me, i have multiple windows to multiple hosts, not one giant tmux mess. in those windows i have tmux'ed sessions, which makes working on a given host much nicer for me.