MacMost's Siri AI proofreading lesson begins with selected text in Pages: ask for a proofread, inspect each suggested edit, then accept or reject it. The useful habit is reviewing the changes instead of letting a rewrite replace a paragraph wholesale. TextEdit and Mail get the same assistance, plus prompts for feedback or different wording.
Pages offers a more careful route through Edit > Track Changes. Turn that on before asking Siri AI to revise text and the edits stay visible in the document for review. Pages labels those changes as yours, so the tracked history doesn't identify the assistant as the editor. That matters when a collaborator assumes the change author proposed each sentence.
The edit trail remains useful for deciding which changes to keep, even though its author label is incomplete.
Proofread is a useful first pass for iPhoners polishing a message or longer document. Feedback is better when the issue is clarity. I'd keep the original nearby, use Track Changes for anything collaborative, and read the final text aloud before sending it. The control to accept a suggestion is still a judgment call, not a fact check.