Sure, here are some sources:
https://abcnews.go.com/Business/tiktok-data-app-report/story?id=97913249
https://www.wired.com/story/tiktok-data-privacy/
https://www.wsj.com/video/series/inside-tiktoks-highly-secretive-algorithm/investigation-how-tiktok-algorithm-figures-out-your-deepest-desires/6C0C2040-FF25-4827-8528-2BD6612E3796
From the very first link:
TikTok is not the only company that uses its pixels throughout the internet. The report found Google, Meta and Microsoft, among others, use these trackers.
Rigorous scholarship there, champ.
Sure, here are some sources:
https://abcnews.go.com/Business/tiktok-data-app-report/story?id=97913249
https://www.wired.com/story/tiktok-data-privacy/
https://www.wsj.com/video/series/inside-tiktoks-highly-secretive-algorithm/investigation-how-tiktok-algorithm-figures-out-your-deepest-desires/6C0C2040-FF25-4827-8528-2BD6612E3796
From the very first link:
Rigorous scholarship there, champ.