View ▸ Review opens the review window: the screen on the left with numbered pins, and the comment thread on the right.
Threads
Each comment carries its author, its age, and the control it is pinned to. Filter between Open and All, and Resolve a thread when it is done.
Writing a Comment
Type in the field at the bottom and press ⌘Return to send. Reviewers do not need a paid seat.
Critique Flow
Where Apple Intelligence is available, Critique Flow in the Review window checks the flow for missing empty, error, loading, and confirmation states. Structural checks, such as dead ends and unreachable screens, run on every Mac.