Samsung launched the Galaxy Z Fold3 last week, and the company has now released a video detailing the boosted productivity of the new foldable following its adoption of the S Pen. A bunch of different use cases are listed where the S Pen can really improve your user experience and allow you to get more work down and faster. Mind you if you plan to take advantage of the S Pen you need to get either the S Pen Pro or the S Pen Fold edition as it doesn't support previous generation S Pens. Source
Source: https://www.gsmarena.com/samsung_shows_how_the_s_pen_boosts_the_galaxy_z_fold3s_productivity-news-50548.php