Catalina it was possible to hide username and computer name from terminal window title:
The reason for that is because you are running zsh shell. I'm running the bash shell and no name or directory shows up in terminal window name. You can run bash before running terminal and that should give you the window name you want. If you type zsh the terminal name will change back.
I don't have Catalina but I've read its changed initial terminal setting to zsh.
- Open the Preferences in the terminal (top right)
- Go into the Shell tab
Then copy/paste the command
export PS1="\W \$"; clear;
Uncheck the "Working directory", "Active Process", and everything else under the Title section.
- Then restart the terminal and should work.
The final look will be like this