I can not seem to make the dual camera ( picture in picture ) to work
@Rekenax: Please take a look at the link below from our friends at Samsung Australia for steps on how to Utilise Director's View. The guide is for the S22 series, but the steps will still be applicable to your Fold/Flip.
https://www.samsung.com/au/support/mobile-devices/directors-view-on-s22/
Let me know how you get on.
