TikTok: @brielleybelly123, Brielle
- TikTok's growth stalled in the final quarter of 2023 and even went into reverse in the US.
- Many young users have signed on to the short-form video app since its launch in 2016.
- Those core users are entering their 20s now and getting busy with other obligations.
By one important measure, TikTok didn't






