Why I left TT

My last day on TT I scrolled suggested contacts and found ppl I’d blocked on FB years ago. Never had contact with on FB, just preemptively blocked for my safety. Did not have their number in my phone, did not email with them, nothing. Had no discussed them with friends in texts, I cannot begin to explain that the only connection that existed between me and these ppl were via block on FB. And when TT went dark, I took FB off my phone, and restarted my phone. Prior to that I’d scrolled the suggested contacts and barely had anything bc I made my TT a separate entity of all other socials, intentionally. The conclusion I came to after seeing that is that there has to have been an exchange of user data from FB to TT during the time it went dark. I’m wondering if anyone else noticed a change in the contacts suggested to them on TT?