Which collaboration feature is covered in 'Google Workspace: Docs - Part 2' alongside Comment and Edit modes?

The correct answer is Suggesting, as this feature allows users to make changes that are not immediately applied to the document but are instead proposed to the document owner or collaborators for approval. When in Suggesting mode, text that is added appears in a different color, and deletions are crossed out, providing a clear visual of what changes are being suggested. This feature enhances collaborative efforts and discussions, as team members can have input on document content while maintaining a clear record of original text alongside proposed alterations. This is vital for maintaining the integrity of a document while still allowing for contributions from multiple users in a streamlined manner.