To stop photos/images sent in WhatsApp from saving in device gallery:
In main, WhatsApp screen, select 3 dots top right.
Then Settings.
Then Chats
Then turn off Media visibility.
Select 3 dots top right
Then Settings.
Then Chats
Then turn off Media visibility.
That's great info - the photo steps to turn off saving WhatsApp sent images from being saved into you Samsun Photo gallery, which can fill up storage space.
Most of the images, videos, GIFs sent in whatsapp you don't want to save into your own galler, and it takes time to remove them from gallery.😀