You can unblock users on TikTok through the app's Privacy menu. Blocking or unblocking a TikTok user won't send them any sort of notification.

If you want to see fewer videos with a particular background sound, you can tell TikTok to block videos that use that sound.

TikTok faced a 14-hour blackout in the US on January 19, during which users were unable to access the app. When TikTok resurfaced, users noticed the presence of Facebook’s profile on the platform.