https://wccftech.com/galaxy-z-fold-4-to-have-a-dedicated-s-pen-slot/

For the longest time, the S Pen has been one of Samsung's best offerings and it managed to truly set the Galaxy Note series apart from everything else in the market to a point that it was the only device in the industry that had a stylus that could do a lot. However, after Galaxy Note 20 series, Samsung decided to retire the Note series altogether and started exploring new horizons where they would bring the famed S Pen to other devices. The Galaxy S21 Ultra was the first one even though it did not have a housing for it, followed by the Galaxy Z Fold 3, which also supported the S Pen. Earlier this year, the Galaxy S22 Ultra served as the final nail in the Note coffin when it arrived with an internal S Pen housing and now a recent report suggests that the Galaxy Z Fold 4 might ship with an S Pen slot too.

Now, of course, it is too early to say anything or confirm the report but it is coming from a reliable source and the source claims that the Galaxy Z Fold 4 is going to be Samsung's first foldable to ship with an S Pen and yes, the device will have an internal silo for the phone.