Git 2.23 introduced the restore command which is a more direct alternative to
checkout and reset for restoring the state of the working tree and the
index (staging area).
With the --staged flag, we can unstage changes, moving them from the index to
the working tree.
To restore a file in the index to match the version in HEAD (this is the same as using git-reset(1))
$ git restore --staged README.md
Staged changes to README.md will be removed from the index and put on the
working tree.
$ git restore --staged .
That will unstage all changes on the index.
This is now recommended by Git when you run git status:
(use "git restore --staged ..." to unstage)
See man git-restore for more details.