the apps you mentioned requires our phone to be rooted?You can Consider creating a virtual camera feed on your device, Using OBS and RTSP. Stream your pre-recorded video from your PC/Mac using OBS Studio and an RTSP server, try using apps like NDI HX Camera or Larix Broadcaster to receive the RTSP feed on your phone and send it as a live feed to TikTok works perfect.
can you share ?Hello there, I have a working method