[smlacy]

I use tmux+emacs inside gnome-terminal for 8+ hours a day.

I rarely (never?) see any "terminal glitching" except for the cases where I've done something absurdly wrong, like running a bash inside emacs-shell with the wrong setting for TERM.

Terminal emulation is essentially a solved problem (state machines and control code sets are small and well defined, there are many reference implementations and compatibility tests). If you see glitching, it's probably from what you're doing inside the terminal, not from the terminal itself.