@raxittogadiya Make sure your Secure Folder is enabled in your system try (the one you get when you pull down from the top, twice. You may need to add this option as an icon. When this is off, the move to secure folder option dissappears. it does not affect any data within the secure folder, it is just a way of hiding this option from prying eyes.
@BigTime65 If you swipe up on the home screen it shows a listing of all apps installed on your device. Camera MAY be within the Samsung folder, if you have such a folder. You can press and hold on this to get it to create an icon on your home screen, and can even be dragged down to the bottom for a "Quick Launch"