Hi, Mustafa Ahmed1
Welcome to Microsoft Community.
We understand that you are experiencing issues with TikTok on Chrome. After our testing, the button is a TikTok designed button and not a Windows system related setting.For now, we recommend that you try checking if you are logged in to your TikTok account and using TikTok in your browser in normal mode.If the issue persists, it is recommended that you consult the TikTok support team directly as this UI button and feature is provided by TikTok. Thank you for your understanding!
Best Regards
Nicholas.Z - MSFT | Microsoft Community Support Specialist