Close current window
windows
// what it does
Prefix + `&` runs kill-window, closing the current window after a y/n confirmation. This terminates every pane in the window and the processes inside them, not just the active pane. Reach for it to discard a window you're finished with.
// shortcut
Ctrl + b&
// gotcha
It kills all panes' processes without a graceful shutdown, and if it's the session's last window the session ends and you're detached. The confirmation defaults to requiring an explicit `y`.