You can reply to employee feedback whether the comments are anonymous or not. Managers are the ones who can reply to the piece of feedback. Those replies aren't anonymous.
Employees receive a notification when someone replies to their feedback either through an email or a Slack message.
If you're a manager in Officevibe, you'll get the notification in your Feedback Digest email (if you have not logged in in the last 24 hours).
Here's an example of an email that's received when a manager replies.
For more information about the Feedback section, you can consult this article!