After the latest updates, it's not possible to move pictures completely to albums from gallery pictures. What it does now is COPYING pictures to new destination (album). One of the main reasons I changed from IPhone to S10+ was just the mentioned feature, MOVING pictures to albums and seeing them only there and not in gallery pitures too. By moving I could arrange my pictures in a good way and having the rest left in gallery pictures. I hope Samsung understand the problem and fix it otherwise my next phone will not be a Samsung.