File > Rename command
If you saved your file with a typo and want to fix it or to change name in general, you have to save, close, go to the file manager, find the file, rename (and hope Ai has not it locked), open it back (and then have an invalid item in File > Recent).
It would be so much easier to have a dedicated command for it.
AdminEgor Chistyakov (Admin, Adobe Illustrator) shared this idea
And while doing this, add an ability to rename linked files as well.