If you are wondering who can see your self review, the answer is easily accessible from your self review itself.
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Visibility of your self review
On the left side navigation of your self review, there is a 'Review details' box. Transparency settings for your review are listed in this box. Click 'Learn more' to get a list of people who can see your self review.
Success Center article 🗒: When do reviews become visible to others?