You can use DeX on the Galaxy Z Fold 8's inner screen with this trick

According to a report by Random News Portal… Samsung's DeX lets you plug in your Samsung Galaxy device into a monitor or TV to create a PC-like experience. Now, it can launch directly on your phone. complete report is on link below. Source: https://www.engadget.com/2258733/galaxy-z-fold-8-series-use-dex-on-inner-screen/