As I exit out of zsh on the terminal on MacOs, it gives me a message:
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.
[Process completed]
This however doesn't close the Terminal window.
This might be related to the another problem I've been having. I used chsh -s /bin/bash to make bash my main terminal shell. This however doesn't work - terminal still opens with zsh.