From ArchWiki

I followed the instructions to show '"user@host:cwd" in Window Title Bar'. However, unlike other terminals, when I ssh to another host, the Alacritty title bar is not updated. Are there additional instructions I need to perform? Bronze (talk) 02:18, 2 May 2020 (UTC)

You'll need to make a parallel change in the .bashrc (or equivalent) on the host. Snakeroot (talk) 03:08, 2 May 2020 (UTC)