What data does TikTok collect?

Hello everyone! What device data can TikTok collect? I think the theme will be very useful to many users. Share any information you own.

Only thing I know is that you shouldn't download anything from the app itself (videos) - it has strong Meta Data sticky to your device and they are indeed saving it to their data base, you will need more than a simple .exe software to remove the sticky meta data tracker on these files...