Can get Adsense approval by posting Tiktok videos in youtube

It is very difficult to get approval for a channel having a lot of Tiktok videos. Because Tiktok app seems not good and banned in several countries. Recently it got banned in India. You compare other channels, but you don't know the history of those channels. They might have got approval without Tiktok videos and may upload now Tiktok videos to get views. Because Tiktok videos gets attention of public very easily. So comparing others channel and making similar type of videos is not good for your channel. Try to focus other unique contents and getting approval will then be very easy.

If you made those videos your own as in you are in those videos or your friend or pet is in those videos then yes you can upload those videos. You should edit them for better horizontal resolution and post them.

However if you have not created the videos yourself, then eventually the YouTube team will purge those accounts and adsense too will deny the channel approval if you have not got it yet.

I have seen a lot of channels getting purged for posting the videos from whatsapp and tiktok. Unless those videos are made by you. Adsense team and youtube team will eventually will catch up and ban those accounts. And you may lose both the accounts.