why no "git fetch --dry-run" ?

Hello List,
I am curious why there is "git push --dry-run" and no "git fetch
--dry-run" nor "git pull --dry-run". It would make sense to keep
push/pull/fetch as symmetric as possible.
For example, I just want to see which branches, if any, changed on a
remote repository since my last fetch. "git fetch -v --dry-run" would
be handy in this case.

--Leo--