https://themarkup.org/gentle-january/2024/01/16/stop-tiktok-from-suggesting-your-account-to-others
"I started to regularly get recommended users that were a bit too close for comfort: an old friend’s mom, a high school teacher, and even someone I couldn’t quite trace my relationship to—until realizing I had saved their contact to coordinate a Craigslist purchase. Other users have shared similar reports.
That’s why I recommend reviewing your social media privacy settings. Apps, including TikTok, all have different ways of recommending your profile to others and recommending others’ profiles to you. If you have TikTok and don’t want your profile suggested to anyone whose number you have saved, stop the app from suggesting your account to contacts and Facebook friends."
