Users often cross-post their content across multiple networks. If an Instagram account is private, their public Facebook page, X (formerly Twitter) account, TikTok, or LinkedIn profile might feature the same photos or updates publicly. Conclusion
Thus, even the most "honest" of these tools fails to deliver anonymous, instant access without the account owner’s explicit approval. their public Facebook page
If these viewer tools do not work, why do so many of them exist? The answer lies in digital monetization and data harvesting. X (formerly Twitter) account