What feature in Google Docs allows for advising changes without direct editing?

The feature that allows for advising changes without direct editing is the Suggested Edits functionality. This tool enables users to propose modifications to a document while keeping the original text intact. When someone suggests an edit, the current author can review each suggestion, deciding to accept or reject it. This process fosters collaboration while maintaining the integrity of the original content until the modifications are approved.

Using suggested edits is particularly beneficial in team environments or educational settings, where feedback is essential but direct changes by multiple collaborators could lead to confusion or loss of original ideas. Other methods, like comments or document history, do not serve the same purpose since they either provide feedback without a modification proposal or track changes that have already been made rather than suggesting new ones.