The key to viewing photos without being friends lies in the setting. Many users forget to set old photos to "Friends Only." Consequently, profile pictures, cover photos, and public posts with images are visible to anyone.
If you want to view a profile without being logged in, or if you believe photos have been indexed by search engines, you can use specialized search queries. Edit the privacy settings for your photos on Facebook The key to viewing photos without being friends
This is arguably the most powerful and underutilized method for finding public content. Google indexes Facebook pages constantly. By using specific search operators, you can bypass Facebook’s cluttered interface and go straight to the indexed photos. The key to viewing photos without being friends
: These are almost always public and visible to everyone. The key to viewing photos without being friends