You can use Track Changes in Word to record every edit made in a document, either by yourself or others.
You can track changes and add comments to your document in Google Docs by switching to Suggesting mode.
Microsoft Word on Windows now auto-saves new files to OneDrive with autosave on by default. This change helps users back up ...
Word’s testing a new default that saves fresh documents to OneDrive with autosave active. It’s convenient and good for recovery, but it also nudges more files into the cloud unless you opt out.