Insider sources told Korean outlet ETNews that the Galaxy Z Fold 3 may suppor the Samsung Galaxy S-Pen. The line between the Galaxy Note and Galaxy S series has narrowed over the past few generations: Z Fold 3 support for the S-Pen could finally make the Galaxy Note redundant.
https://www.notebookcheck.net/Samsung-Galaxy-Z-Fold-3-S-Pen-support-could-mean-the-end-of-the-road-for-the-Galaxy-Note-series-and-a-higher-cost-of-entry-for-S-Pen-ownership.523411.0.html