Before this update, to comment on a document shared with you you had to open it either in Docs, Slides or Sheets or use a third party app. Now, using Drive preview pane, you will be able to ‘comment, assign tasks, or mention coworkers and the people you work can reply back, even if they’re not using G Suite. Let’s say your coworker opens a file on her Windows laptop using MS Word, she will see your comment in the file and can reply right from there.’
