As far as I know, that message means that you have commits in your local repository that hasn't been pushed in the remote repository. If you push your commits in the local repository, then you get away of that message.
After reading your question, I created a commit in my dotfiles repository and I got that messaage (see image below).
After pushing the commits (i.e. pressing
p u) to the remote repository, that message disappeared (see image below).
Note that in my remote repository, the most significant branch is
main, that's why the message shows
origin/main instead of