Primarily focused on short-form content, with a maximum length of 3 minutes (as of my last knowledge cutoff in September 2021).1
This paper was flagged on PubPeer by an anonymous user (alias Nerita vitiensis).
References
1Timmi M, Laaouina L, Jeghal A, El Garouani S, Yahyaouy A. Comparative evaluation of YouTube, Facebook, TikTok, and Instagram as online learning resources. In: 2024 International Conference on Intelligent Systems and Computer Vision (ISCV). IEEE; 2024:1-6. doi:10.1109/ISCV60512.2024.10620142