Is this an openSSH thing and therefore an OpenBSD "thing"? I only ask because openBSD's `cu` uses the same ~. escape to exit out of a serial/tty connection. I

Is this an openSSH thing and therefore an OpenBSD "thing"? I only ask because openBSD's `cu` uses the same ~. escape to exit out of a serial/tty connection. I honestly had no idea ssh implemented the same escape until I read this.