Since the Cambridge Analytica scandal in 2018, Facebook (now Meta) has drastically changed its privacy architecture. By default, most users’ posts, photos, and friend lists are hidden from (i.e., "logged-out" or "no account" viewers). When you are not signed into Facebook, you are essentially a "public visitor." Facebook shows you only what a user has explicitly set to "Public."
Go directly to facebook.com/public and search for a name. Facebook aggregates public posts and profiles here. You will only see content that the user has intentionally shared with "Public" (globe icon). facebook profile viewer no account link
A store owner wanted to see a competitor’s private business page. He entered his own Facebook credentials into a fake viewer website. The next day, his business page was deleted, and the attacker posted pornographic content under his name. Facebook support took three weeks to restore access. Since the Cambridge Analytica scandal in 2018, Facebook