tmux man page:
The TERM environment variable must be set to “screen” for all programs running inside tmux. New windows will automatically have “TERM=screen” added to their environment, but care must be taken not to reset this in shell start-up files.
Is this this because
tmux session can be attached to any terminal (e.g. remote),
screen being lowest common denominator? If I know my terminal, can I force it without unexpected results, or would some unsupported capabilities break (like scrolling)?