Yeah, that’s literally what I said in the post above:
You can check it like this (the current user’s default shell is Bash, but the currently running interactive shell is Zsh):
~🐸 echo $SHELL
/bin/bash
~🐸 echo $0
/bin/zsh
Like I said, that’s just my personal preference, I find it the most convenient. You’re, of course, free to chsh into Zsh, if you really want to… I wouldn’t, though.