Microsoft has released version 16.54 of Office for Mac, bringing a more modern commenting experience to Word with improved @mentions and keyboard shortcuts. Microsoft has now aligned its commenting approach across all Office desktop and Web apps (including Excel and PowerPoint), as well as between macOS and Windows. Comments now require that you click the Post Comment or Post Reply button or use the Command-Enter shortcut, and resolved comments move to the Comments pane to provide better focus. Outlook also receives new voice commands for sending mail and setting @mentions. ($149.99 for a one-time purchase, $99.99/$69.99 annual subscription options, free update through Microsoft AutoUpdate, release notes, macOS 10.14+)
Source: https://tidbits.com/watchlist/microsoft-office-2019-16-54/
