Many "no account required" viewers are phishing scams designed to: Steal your personal information. Install malware on your device.
The website owners get paid by advertisers every time you complete one of those surveys or download a game. Once you finish the verification, the site will either loop you into another survey (you will never finish) or simply show you a random list of public friends from the profile you searched—people you already knew were there.
Is there a facebook private account viewer that actually works? - mSpy
If you’d like, I can:
While there are ways to view Facebook profiles without an account or verification, it's essential to prioritize respect for people's privacy and adhere to Facebook's terms of service. If you need to access a profile for legitimate reasons, consider using Facebook's public profile feature or reaching out to a mutual friend. For more complex situations, exercise caution when using third-party services.